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Web: www.stearns-direct.com Email: sales@stearns-direct.com Phone: (888) 861-8777
 
Stainless Steel Double C-Face Coupler Brakes: 56,700 (1-056-7XS) 56C-145TC
 
Series 56,700 (1-056-7XS)
Mounting Face: 56C-145TC
 

56,700
56C-145TC
 
Specifications:
(1-056-7XS)
Static Torque: 1.5 through 25 lb-ft.
Enclosure Material: IP 23, 54 & 55 Die Cast Aluminum; IP 56 Stainless Steel.
Release Type: Knob, Maintained with automatic reset.
Enclosure Protection: IP 23 & 54 (formerly referred to by Stearns as NEMA Type 2 & 4 respectively). IP 55 & 56 (formerly referred to by Stearns as NEMA Type 4X BISSC Certified & Type 4X stainless steel enclosure, respectively).
Universal Mounting: Through 15 lb-ft. 20 and 25 lb-ft. supplied with springs for vertical modification.
Note: 56,700 Series mounts between C-Face motor and reducer. Do not apply overhung load to brake output shaft.
 
    •   ABS Type Approval Certified.
    •   Spring-Set Electrically Released.
    •   Adjustable Torque.
    •   Manual Release Knob, Maintained with Automatic Reset.
    •   Manual Wear Adjustment.
    •   Maximum Speed: 5000 rpm Horizontal, 3600 rpm Vertical.
 
Replacement Parts for 56,700 Series (rev. A & B) Double C-Face Coupler [P/N 8-078-906-07]

No Qty
Req'd
Item Part
Number
Description Picture Stock
Qty
Price
Each
Qty
Ord'd
Update
Cart
1 1 A STE-5-66-8865-00 Stearns 56,700 (05) shaft and hub kit, 5/8 dia - 0 $169.97
2 1   STE-5-66-8867-00 Stearns 56,700 (07) shaft and hub kit-1&2 disc, 7/8 dia - 0 $183.82
3 1   STE-5-66-8869-00 Stearns 56,700 (07) 3 disc shaft and hub kit - 0 $221.70
4 1 7 STE-8-007-527-09 Call - 0 Call Call Call
5 1   STE-8-007-527-11 Stearns Housing - DTWP (NEMA 4) - 0 $323.31
6 1   STE-8-007-527-12 Stearns Housing - BISSC (NEMA 4X) - 0 $101.61
7 1 7S STE-5-96-0527-00 Stearns Mounting stud kit (NEMA 2 & 4) - 0 $27.71
8 1   STE-5-96-0528-00 Stearns Mounting stud kit (NEMA 4X) - 0 $73.90
9 1 7A STE-8-104-505-00 Stearns Access cover (NEMA 2) - 0 $4.63
10 1   STE-8-104-506-00 Stearns Access cover (NEMA 4) - 0 $7.39
11 1   STE-8-104-506-01 Stearns Access cover (NEMA 4X) - 0 $7.39
12 1 7B STE-5-07-5033-00 Stearns 56,700 access cover/side rel. open assy. - 0 $42.49
13 1   STE-5-07-5037-00 Stearns 56,700 side rel., NEMA 4 - 0 $66.51
14 1   STE-5-07-5038-00 Stearns 56,700 access cvr side rel. assy., NEMA 4X - 0 $83.14
15 1 7R STE-9-25-7321-00 Stearns Screw - 0 $1.85
16 1 Not shown STE-5-63-5503-00 Stearns Release knob kit - 0 $64.66
17 1 Not shown STE-8-073-504-00 Stearns 56,700 rubber gasket-access cover 1/16 - 0 $7.39
18 1 Not shown STE-8-069-506-00 Stearns 55,700 gasket brake hsg. .03 NEOP-black - 0 $36.95
19 1 Not shown STE-8-122-501-00 Stearns 55,700/56,200 gasket motor-.03 noeprene/6.5 OD-black - 0 $18.47
20 1 7P STE-9-33-0325-00 Stearns Pipe plug - 0 $5.54
21 1   STE-9-33-0325-01 Call - 0 Call Call Call
22 1 3 STE-5-66-8354-00 Stearns Disc. Stationary Disc Kit 4/15 - 0 $50.05
23 1 3A STE-5-66-8355-00 Stearns Disc. Stationary Disc Kit, 2 Discs 1/15 - 0 $93.55
24 1 3B STE-5-66-8356-00 Stearns Disc Kit 
Part STE-5-66-8356-00 
56K 
Stationary Disk 
Kit-3 Disc 
VA / VB 
Dated 8/17 
(3LBS) H 4" L 8" W 4" Box
- 0 $140.53
25 1 4 STE-5-66-8462-00 Stearns Disc 
Part STE-5-66-8462-00 
Friction Disc with Splined Hub 
Normally ships from stock 
Dated 2/17
- 0 $91.44
26 1 4DP STE-5-66-8601-00 Stearns Disc Pack Kit 4/15 - 0 $132.29
27 1   STE-5-66-8602-00 Stearns 56 fric./stationary disc pack kit-2 disc - 0 $249.41
28 1   STE-5-66-8603-00 Stearns Disc 
56 Friction Disc 
Stationary Disc Pack / Kit -3 Disc 
Horizontal 
8/16
- 0 $387.45
29 1 16 STE-5-16-5150-00-01-B Call - 0 Call Call Call
30 1   STE-5-16-5150-00-01D Stearns Hub 
Part STE-5-16-5150-00-01D 
#56 Splined Hub 
For 2 Discs 
7/8 Inch Bore 
Dated 1/17
- 0 $57.76
31 1   STE-5-16-5153-01 Call - 0 Call Call Call
32 1 2 STE-5-02-5035-00 Stearns Disc Assembly 
STE-5-02-5035-00 
56,700 1 & 2 Disc, Open, Coupler 
Endplate / Stationary Disc Assembly 
Dated 1/17
- 0 $96.25
33 1   STE-5-02-5039-00 Call - 0 Call Call Call
34 1   STE-5-02-5036-00 Stearns Disc Assembly 
Part STE-5-02-5036-00 
56,700 3 Disc, Open, Coupler / End Plate 
Stationary Disc Assembly 
Dated 1/17
- 0 $115.50
35 1   STE-5-02-5040-00 Call - 0 Call Call Call
36 1 2A STE-9-33-0914-00 Stearns Pipe Plug 
Part STE-9-33-0914-00 
(1LB) H 4" L 5" W 4" Box
- 0 $2.89
37 1   STE-9-33-0624-00 Stearns Pipe plug - stainless (ext. lead holes) - 0 $12.94
38 1 6 STE-8-006-501-00 Stearns Bearing 
Part STE-8-006-501-00 
Sleeve Bearing 
Oilite 
0.31 Inch Diameter  
0.59 Inch Long 
Dated 1/17
- 0 $3.85
39 1 8 STE-8-008-504-01 Stearns Lever 
Part STE-8-008-504-01 
56 Solenoid Lever 
Aluminum W/Fin 
Dated 1/17 
(1LB) H 4" L 5" W 4" Box
- 0 $42.35
40 1 8R STE-9-03-0057-00 Stearns Retaining Ring 
11/16
- 0 $3.26
41 1 8W STE-9-45-0168-00 Stearns Lock Washer 
Part STE-9-45-0168-00 
Dated 1/17
- 0 $2.20
42 1 11N STE-9-40-3928-00 Stearns Nut - 0 $3.70
43 1 10 STE-9-17-8420-00 Stearns Cap screw - 0 $11.09
44 1 11 STE-9-70-1215-00 Stearns Pressure spring - 0 $3.70
45 1   STE-9-70-1523-00 Stearns Pressure spring - 0 $3.70
46 1   STE-9-70-1524-00 Stearns Pressure spring - 0 $3.70
47 1 11W STE-9-46-0010-00 Stearns Spring washer - 0 $1.85
48 1 17 STE-5-17-5011-00 Stearns 56,0,5&700 lever arm assembly - 0 $16.63
49 1 26 STE-9-29-4826-00 Stearns Pin - 0 $3.70
50 1 29A STE-8-094-503-00 Stearns Plunger Stop - 0 $3.78
51 1 126 STE-5-26-5021-00 Stearns Support Plate 
Part STE-5-26-5021-00 
Support Plate & Spring Stud Assembly
- 0 $33.25
52 1 131 STE-9-29-4836-00 Stearns Pin 
1/17
- 0 $3.85
53 1 142S STE-9-25-9013-00 Stearns Mounting screws - 0 $0.93
54 1 Z STE-5-66-5047-00 Stearns 56,700 #4 AC solenoid kit - 0 $147.80
55 1   STE-5-96-5047-01 Stearns Solenoid Kit 
Part STE-5-96-5047-01 
# 4, Rev B only 
Dated 1/17
- 0 $154.00
56 1 12 STE-5-66-6407-33 Stearns Coil Kit 
Part STE-5-66-6407-33 
Size # 4 
115 / 230 Volt AC 60 Hz 
Normally a stock item OH 
Dated 1/17
- 0 $223.30
57 1   STE-5-66-6409-33 Stearns Coil 
Part STE-5-66-6409-33 
Coil Kit #4 
230 / 460 Volt, 60 Hz 
Class "B" Insulation 
Replaces 
aka 6-4-42306-08 
aka 6-4-42306-09-44Q 
Dated 5/17 
(1LB) H 4" L 5" W 4" Box
- 0 $223.30
58 1   STE-5-66-6401-33 Stearns Coil Kit 
Part STE-5-66-6401-33 
#4 Coil Kit 
115 Volt AC 60 Hz 
Class "B" Insulation 
aka old 634115609 
Dated 1/17
- 0 $121.28
59 1   STE-5-66-6402-33 Stearns Coil Kit 
STE-5-66-6402-33 
# 4 Coil kit 
230 Volt AC 60 Hz 
190 Volt AC 50 Hz 
Class "B" Insulation 
Brakes 48000, 55000, 55200, 55500, 55700, 57500 
Dated 6/17
- 4 $118.13
60 1   STE-5-66-6404-33 Stearns Coil 460 Volt 
2/17
- 1 $126.63
61 1   STE-5-66-6405-33 Stearns Coil Assembly S4 575 Volt 
S4 Coil Kit 
575 Volt AC 11/15
- 0 $126.63
62 1   STE-5-66-6457-33 Stearns Coil Kit 
Part STE-5-66-6457-23 
M4 Coil Kit 
115 / 230 Volt AC 60 Hz 
class "B" Insulation 
Dated 1/17 
(2LBS) H 4" L 5" W 4" Box
- 0 $231.00
63 1   STE-5-66-6459-33 Stearns Coil Kit 
Part STE-5-66-6459-33 
#K4 Coil Kit  
230 / 460 Volt AC, 60 Hz 
aka 8-087-946-01 & 64423160951Q 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 4 $231.00
64 1   STE-5-66-6451-33 Stearns Coil Kit 
Part STE-5-66-6451-33 
#K4 Coil Kit 
115 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
65 1   STE-5-66-6452-33 Stearns Coil Kit 
Part STE-5-66-6452-23 
#M4 Coil Kit 
230 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
66 1   STE-5-66-6454-33 Stearns Coil Kit 
Part STE-5-66-6454-33 
#K4 Coil Kit 
460 Volt AC, 60 Hz 
Class "B" Insulation 
aka Old 634461609 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $126.63
67 1   STE-5-66-6455-33 Stearns Coil Kit 
Part STE-5-66-6455-33 
#M4 Coil Kit 
575 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
68 1   STE-5-66-6407-23 Stearns Coil 
#K4 Coil Kit 
115 / 230 Volt AC 60 Hz 
Class "B" Insulation
- 0 $219.23
69 1   STE-5-66-6409-23 Stearns Coil Kit 
Part STE-5-66-6409-23 
K4 Coil Kit 
230 / 460 Volt 60 Hz 
190 / 380 Volt 50 Hz 
aka STE-6-442306-19-54Q 
Dated 5/17
- 0 $223.30
70 1   STE-5-66-6401-23 Stearns Coil Kit 
Part STE-5-66-6401-23 
#K4+ Coil Kit 
115 Volt AC 60 Hz 
Date 1/17
- 0 $121.28
71 1   STE-5-66-6402-23 Stearns Coil. K4 + Coil @ 230 Volt - 0 $126.63
72 1   STE-5-66-6404-23 Stearns Coil Kit-K4+ Inj 460 Volt - 0 $126.63
73 1   STE-5-66-6405-23 Stearns #K4+ coil kit 575 Vac, 60 Hz, Cl. B - 0 $126.63
74 1   STE-5-66-6457-23 Stearns Coil Kit 
Part STE-5-66-6457-23 
M4 Coil Kit 
115 / 230 Volt AC 60 Hz 
class "B" Insulation 
Dated 1/17 
(2LBS) H 4" L 5" W 4" Box
- 0 $231.00
75 1   STE-5-66-6459-23 Stearns Coil Kit 
Part STE-5-66-6459-23 
#M4 Coil Kit 
230 / 460 Volt AC 60 Hz 
Class B Insulation 
Normally a stock item 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 1 $231.00
76 1   STE-5-66-6451-23 Stearns Coil Kit 
Part STE-5-66-6451-23 
#M4 Coil Kit 
115 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
77 1   STE-5-66-6452-23 Stearns Coil Kit 
Part STE-5-66-6452-23 
#M4 Coil Kit 
230 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
78 1   STE-5-66-6454-23 Stearns Coil Kit 
Part STE-5-66-6454-23 
#M4 Coil Kit 
460 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
79 1   STE-5-66-6455-23 Stearns Coil Kit 
Part STE-5-66-6455-23 
#M4 Coil Kit 
575 Volt AC, 60 Hz 
Class "B" Insulation 
Dated 1/17 
(3LBS) H 4" L 5" W 4" Box
- 0 $128.98
80 1 CC STE-5-57-5526-00 Stearns 56 brake interlock switch kit - 0 $201.38
81 1 A STE-5-66-8865-00 Stearns 56,700 (05) shaft and hub kit, 5/8 dia - 0 $169.97 Line #1 -
82 1   STE-5-66-8867-00 Stearns 56,700 (07) shaft and hub kit-1&2 disc, 7/8 dia - 0 $183.82 Line #2 -
83 1   STE-5-66-8869-00 Stearns 56,700 (07) 3 disc shaft and hub kit - 0 $221.70 Line #3 -
84 1 3 STE-5-66-8354-00 Stearns Disc. Stationary Disc Kit 4/15 - 0 $50.05 Line #22 -
85 1 3A STE-5-66-8355-00 Stearns Disc. Stationary Disc Kit, 2 Discs 1/15 - 0 $93.55 Line #23 -
86 1 3B STE-5-66-8356-00 Stearns Disc Kit 
Part STE-5-66-8356-00 
56K 
Stationary Disk 
Kit-3 Disc 
VA / VB 
Dated 8/17 
(3LBS) H 4" L 8" W 4" Box
- 0 $140.53 Line #24 -
87 1 4 STE-5-66-8462-00 Stearns Disc 
Part STE-5-66-8462-00 
Friction Disc with Splined Hub 
Normally ships from stock 
Dated 2/17
- 0 $91.44 Line #25 -
88 1 4DP STE-5-66-860X-00 Call - 0 Call Call Call
89 1 7S STE-5-96-052X-00 Call - 0 Call Call Call
90 1 Z STE-5-66-5047-00 Stearns 56,700 #4 AC solenoid kit - 0 $147.80 Line #54 -
91 1   STE-5-96-5047-01 Stearns Solenoid Kit 
Part STE-5-96-5047-01 
# 4, Rev B only 
Dated 1/17
- 0 $154.00 Line #55 -
92 1   STE-5-63-5047-01 Call - 0 Call Call Call
93 1 12 STE-5-66-64XX-X3 Call - 0 Call Call Call
94 1 CC STE-5-57-5526-00 Stearns 56 brake interlock switch kit - 0 $201.38 Line #80 -
Easy Order Shortcuts
No Part
Number
Description Image Stock
Qty
Price
Each
Qty
Ord'd
Update
Cart
1 STE-1-056-701-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
2 STE-1-056-701-05- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
3 STE-1-056-701-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
4 STE-1-056-701-05- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
5 STE-1-056-701-05- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
6 STE-1-056-701-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
7 STE-1-056-701-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
8 STE-1-056-701-05- RF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [R] = Voltage: 200/400; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
9 STE-1-056-701-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
10 STE-1-056-701-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
11 STE-1-056-701-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
12 STE-1-056-701-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
13 STE-1-056-701-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $390.60
14 STE-1-056-701-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $508.60
15 STE-1-056-701-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $508.60
16 STE-1-056-701-Y5- NB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [B] = N/A
- 0 $553.35
17 STE-1-056-701-Y5- QB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $553.35
18 STE-1-056-702-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
20 STE-1-056-702-05- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
21 STE-1-056-702-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
22 STE-1-056-702-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
23 STE-1-056-702-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
24 STE-1-056-702-07- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
25 STE-1-056-702-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
26 STE-1-056-702-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $500.46
27 STE-1-056-702-H5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $618.45
28 STE-1-056-702-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $618.45
29 STE-1-056-702-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $618.45
30 STE-1-056-702-W5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
31 STE-1-056-702-Y5- QB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $573.70
32 STE-1-056-704-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $561.49
33 STE-1-056-704-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $561.49
34 STE-1-056-704-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $561.49
35 STE-1-056-704-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $561.49
36 STE-1-056-704-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $561.49
37 STE-1-056-704-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $679.49
38 STE-1-056-704-K5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $764.93
39 STE-1-056-705-05- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
40 STE-1-056-705-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
41 STE-1-056-705-05- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
42 STE-1-056-705-05- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
43 STE-1-056-705-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
44 STE-1-056-705-07- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
45 STE-1-056-705-H5- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $752.72
46 STE-1-056-706-05- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $744.59
47 STE-1-056-706-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard 4/16
- 0 $744.59
48 STE-1-056-706-05- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [0] = 1.5 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $744.59
49 STE-1-056-711-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
50 STE-1-056-711-05- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
51 STE-1-056-711-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
52 STE-1-056-711-05- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
53 STE-1-056-711-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
54 STE-1-056-711-05- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
55 STE-1-056-711-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
56 STE-1-056-711-05- QF Stearns Disc Brake 
Model STE-1-056-711-05- QF 
Series 56,700, Die Cast Aluminum 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $414.38
57 STE-1-056-711-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
58 STE-1-056-711-07- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
59 STE-1-056-711-07- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
60 STE-1-056-711-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
61 STE-1-056-711-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
62 STE-1-056-711-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
63 STE-1-056-711-08- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
64 STE-1-056-711-08- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
65 STE-1-056-711-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
66 STE-1-056-711-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $406.88
67 STE-1-056-711-H5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $524.87
68 STE-1-056-711-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $524.87
69 STE-1-056-711-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $524.87
70 STE-1-056-711-H7- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $524.87
71 STE-1-056-711-H7- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $524.87
72 STE-1-056-711-H8- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $524.87
73 STE-1-056-711-K5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $610.31
74 STE-1-056-711-Y5- NB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [B] = N/A
- 0 $569.63
75 STE-1-056-711-Y5- QB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $569.63
76 STE-1-056-712-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
77 STE-1-056-712-05- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
78 STE-1-056-712-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
79 STE-1-056-712-05- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
80 STE-1-056-712-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
81 STE-1-056-712-05- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
82 STE-1-056-712-05- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
83 STE-1-056-712-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
84 STE-1-056-712-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
85 STE-1-056-712-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
86 STE-1-056-712-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
87 STE-1-056-712-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
88 STE-1-056-712-07- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
89 STE-1-056-712-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
90 STE-1-056-712-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
91 STE-1-056-712-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
92 STE-1-056-712-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $516.74
93 STE-1-056-712-H5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
94 STE-1-056-712-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
95 STE-1-056-712-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $634.72
96 STE-1-056-712-W5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $882.93
97 STE-1-056-712-Y5- PB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [B] = N/A
- 0 $679.49
98 STE-1-056-712-Y5- QB Stearns Brake 
Series 56,700 (1-056-7XX) 
Part STE-1-056-712-Y5-QB 
IP 23, 54 & 55 Die Cast Aluminum 
Release Type, Knob, Maintained with automatic reset 
Mounting Face, NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
AJ Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque, LB / FT, 1 = 3 FT LBS 
Enclosure,2 = IP 54 
Hub Bore 0.625 with a Keyway 0.19 x 0.09 
Standard AC Voltage, Q, = Voltage: 208-230/460 60 Hz. / 190/380 50 Hz 
Leadwire Position, B 
1 to 2 Weeks 
6/16
- 1 $688.88
99 STE-1-056-713-00- LB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $2,034.38
100 STE-1-056-713-00- QC Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [C] = N/A
- 0 $2,034.38
101 STE-1-056-714-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
102 STE-1-056-714-05- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
103 STE-1-056-714-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
104 STE-1-056-714-05- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
105 STE-1-056-714-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
106 STE-1-056-714-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
107 STE-1-056-714-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
108 STE-1-056-714-07- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
109 STE-1-056-714-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
110 STE-1-056-714-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
111 STE-1-056-714-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
112 STE-1-056-714-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
113 STE-1-056-714-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $695.76
114 STE-1-056-714-K5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $781.20
115 STE-1-056-715-05- TF Stearns Disc Brake Series 56,700 
Part STE-1-056-715-05- TF 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 
4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
3 LB FT Torque 
IP 23 Die Cast Aluminum Endplate & Housing 
Hub Bore 0.625 Inch Diameter, Keyway 0.19 x 0.09 Inch 
T = 12 Volts DC 
F = Leadwire Position Form 1, 2 and 3. Internal and External, Left and Right 
Dated 6/17
- 0 $663.00
116 STE-1-056-715-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
117 STE-1-056-715-05- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
118 STE-1-056-715-05- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
119 STE-1-056-715-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
120 STE-1-056-715-05- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
121 STE-1-056-715-05- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
122 STE-1-056-715-07- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
123 STE-1-056-715-07- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
124 STE-1-056-715-07- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $651.00
125 STE-1-056-715-H5- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $769.00
126 STE-1-056-715-H5- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $769.00
127 STE-1-056-716-05- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $760.86
128 STE-1-056-716-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $760.86
129 STE-1-056-716-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $760.86
130 STE-1-056-716-05- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $760.86
131 STE-1-056-716-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $760.86
132 STE-1-056-716-08- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $760.86
133 STE-1-056-718-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $821.89
134 STE-1-056-718-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $821.89
135 STE-1-056-718-05- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $821.89
136 STE-1-056-718-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $821.89
137 STE-1-056-71S-05- CF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [C] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,147.49
138 STE-1-056-71S-05- FF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,013.21
139 STE-1-056-71S-05- QF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,013.21
140 STE-1-056-71S-H5- BF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [1] = 3 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,905.09
141 STE-1-056-721-05- BF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- BF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
B = 115 Volt AC 60 Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
142 STE-1-056-721-05- DF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- DF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
D = 110 Volt AC 50 Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
143 STE-1-056-721-05- EF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- EF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
E = 200 Volt AC 60 Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
144 STE-1-056-721-05- FF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- FF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
F = 230 Volt AC 60 Hz, 19 Volt AC 50 Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
145 STE-1-056-721-05- JF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- JF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
J =  
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
146 STE-1-056-721-05- LF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- LF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
L = 460 Volt AC 60Hz, 380 Volt AC 50 Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
147 STE-1-056-721-05- MF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- MF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
M = 415 Volt AC 50Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
148 STE-1-056-721-05- NF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- NF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
N = 575 Volt AC 60Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
149 STE-1-056-721-05- OF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- OF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
O = 110 / 220 Volt AC 50Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
150 STE-1-056-721-05- PF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- PF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
P = 115 / 208 - 230 Volt AC 60Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
151 STE-1-056-721-05- QF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- QF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
Q = 208-230 / 460 Volt AC 60 Hz, 190 / 380 Volt AC 50 Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
152 STE-1-056-721-05- RF Stearns Disc Brake Series 56,700 
Part STE-1-056-721-05- RF 
IP 23 & 54 Die Cast Aluminum 
Release Type: Knob, Maintained with Automatic Reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
2 - 6 FT LB Nominal Static Torque 
1 = IP 23 Enclosure 
0.625 Hub Bore Diameter with a 0.19 x 0.09 Keyway 
R = 200 / 400 Volt AC 60Hz 
F = Leadwire Position, Standard, Internal and External, Left and Right  
Ships in 2 Weeks 
Dated 11/17
- 0 $468.25
153 STE-1-056-721-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
154 STE-1-056-721-07- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
155 STE-1-056-721-07- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
156 STE-1-056-721-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
157 STE-1-056-721-07- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
158 STE-1-056-721-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
159 STE-1-056-721-07- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
160 STE-1-056-721-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
161 STE-1-056-721-07- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
162 STE-1-056-721-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
163 STE-1-056-721-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard 7/16
- 0 $459.78
164 STE-1-056-721-08- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
165 STE-1-056-721-08- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
166 STE-1-056-721-08- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
167 STE-1-056-721-08- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
168 STE-1-056-721-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard 9/16
- 0 $516.74
169 STE-1-056-721-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $459.78
170 STE-1-056-721-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
171 STE-1-056-721-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
172 STE-1-056-721-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
173 STE-1-056-721-H7- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
174 STE-1-056-721-H7- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $577.76
175 STE-1-056-721-I5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
176 STE-1-056-721-I5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
177 STE-1-056-721-K7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $663.21
178 STE-1-056-722-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
179 STE-1-056-722-05- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
180 STE-1-056-722-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
181 STE-1-056-722-05- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
182 STE-1-056-722-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
183 STE-1-056-722-05- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
184 STE-1-056-722-05- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
185 STE-1-056-722-05- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
186 STE-1-056-722-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
187 STE-1-056-722-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
188 STE-1-056-722-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
189 STE-1-056-722-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
190 STE-1-056-722-07- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
191 STE-1-056-722-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
192 STE-1-056-722-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
193 STE-1-056-722-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
194 STE-1-056-722-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
195 STE-1-056-722-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $569.63
196 STE-1-056-722-H5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
197 STE-1-056-722-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
198 STE-1-056-722-H5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
199 STE-1-056-722-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
200 STE-1-056-722-H7- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
201 STE-1-056-722-H7- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
202 STE-1-056-722-H7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $687.62
203 STE-1-056-722-I5- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
204 STE-1-056-722-I7- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
205 STE-1-056-722-Y5- QB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $569.63
206 STE-1-056-723-00- QC Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [C] = N/A
- 0 $2,087.27
207 STE-1-056-723-W0- FB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $2,453.46
208 STE-1-056-724-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
209 STE-1-056-724-05- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
210 STE-1-056-724-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
211 STE-1-056-724-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
212 STE-1-056-724-05- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
213 STE-1-056-724-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
214 STE-1-056-724-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
215 STE-1-056-724-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
216 STE-1-056-724-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
217 STE-1-056-724-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
218 STE-1-056-724-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
219 STE-1-056-724-08- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
220 STE-1-056-724-08- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
221 STE-1-056-724-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
222 STE-1-056-724-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $630.66
223 STE-1-056-724-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $748.65
224 STE-1-056-724-H8- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $748.65
225 STE-1-056-725-05- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
226 STE-1-056-725-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
227 STE-1-056-725-05- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
228 STE-1-056-725-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
229 STE-1-056-725-05- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
230 STE-1-056-725-05- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
231 STE-1-056-725-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
232 STE-1-056-725-07- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
233 STE-1-056-725-07- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
234 STE-1-056-725-07- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
235 STE-1-056-725-07- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
236 STE-1-056-725-08- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
237 STE-1-056-725-08- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $703.90
238 STE-1-056-725-H7- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $821.89
239 STE-1-056-726-05- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $813.75
240 STE-1-056-726-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $813.75
241 STE-1-056-726-05- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $813.75
242 STE-1-056-726-07- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $813.75
243 STE-1-056-726-07- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $813.75
244 STE-1-056-726-W5- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,179.94
245 STE-1-056-728-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $874.79
246 STE-1-056-728-05- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $874.79
247 STE-1-056-728-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $874.79
248 STE-1-056-728-05- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $874.79
249 STE-1-056-728-07- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $874.79
250 STE-1-056-728-08- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $874.79
251 STE-1-056-72S-05- BF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,066.11
252 STE-1-056-72S-05- QF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,066.11
253 STE-1-056-72S-07- LF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,066.11
254 STE-1-056-72S-07-001 Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [S] = IP 56 
Hub [0] = N/A 
Standard AC Voltage Rating [0] = N/A 
Leadwire Position [1] = N/A
- 0 $2,318.37
255 STE-1-056-72S-H7- BF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,184.10
256 STE-1-056-72S-I5- LF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [2] = 6 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,237.00
257 STE-1-056-731-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
258 STE-1-056-731-05- CF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [C] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $675.41
259 STE-1-056-731-05- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
260 STE-1-056-731-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
261 STE-1-056-731-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
262 STE-1-056-731-05- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
263 STE-1-056-731-05- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
264 STE-1-056-731-05- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
265 STE-1-056-731-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
266 STE-1-056-731-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
267 STE-1-056-731-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
268 STE-1-056-731-07- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
269 STE-1-056-731-07- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
270 STE-1-056-731-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
271 STE-1-056-731-07- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
272 STE-1-056-731-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
273 STE-1-056-731-07- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
274 STE-1-056-731-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
275 STE-1-056-731-07- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
276 STE-1-056-731-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
277 STE-1-056-731-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
278 STE-1-056-731-08- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
279 STE-1-056-731-08- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
280 STE-1-056-731-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
281 STE-1-056-731-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $541.15
282 STE-1-056-731-H5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
283 STE-1-056-731-H5- CF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [C] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $793.41
284 STE-1-056-731-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
285 STE-1-056-731-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
286 STE-1-056-731-H7- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
287 STE-1-056-731-H7- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
288 STE-1-056-731-H7- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
289 STE-1-056-731-H7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $659.14
290 STE-1-056-731-I5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $712.04
291 STE-1-056-731-I5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $712.04
292 STE-1-056-731-I7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $712.04
293 STE-1-056-732-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
294 STE-1-056-732-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
295 STE-1-056-732-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
296 STE-1-056-732-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
297 STE-1-056-732-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
298 STE-1-056-732-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
299 STE-1-056-732-07- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
300 STE-1-056-732-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
301 STE-1-056-732-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
302 STE-1-056-732-07- MF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [M] = Voltage: 415; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
303 STE-1-056-732-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
304 STE-1-056-732-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
305 STE-1-056-732-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
306 STE-1-056-732-08- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $655.07
307 STE-1-056-732-H5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
308 STE-1-056-732-H7- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
309 STE-1-056-732-H7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
310 STE-1-056-732-I7- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $825.96
311 STE-1-056-732-W5- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,021.26
312 STE-1-056-733-00- LC Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [C] = N/A
- 0 $2,168.65
313 STE-1-056-734-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
314 STE-1-056-734-05- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
315 STE-1-056-734-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
316 STE-1-056-734-05- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
317 STE-1-056-734-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
318 STE-1-056-734-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
319 STE-1-056-734-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
320 STE-1-056-734-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
321 STE-1-056-734-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
322 STE-1-056-734-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $716.10
323 STE-1-056-734-I7- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $886.99
324 STE-1-056-734-W7- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,082.29
325 STE-1-056-735-05- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
326 STE-1-056-735-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
327 STE-1-056-735-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
328 STE-1-056-735-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
329 STE-1-056-735-07- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
330 STE-1-056-735-07- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
331 STE-1-056-735-07- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
332 STE-1-056-735-07- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
333 STE-1-056-735-08- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
334 STE-1-056-735-08- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
335 STE-1-056-735-08- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $785.27
336 STE-1-056-735-H5- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $903.26
337 STE-1-056-735-H7- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $903.26
338 STE-1-056-736-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $899.20
339 STE-1-056-736-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $899.20
340 STE-1-056-736-07- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $899.20
341 STE-1-056-736-07- ZF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Z] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $899.20
342 STE-1-056-736-H5- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,017.19
343 STE-1-056-738-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $960.22
344 STE-1-056-73S-05- NF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,147.49
345 STE-1-056-73S-05- QF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,147.49
346 STE-1-056-73S-07- NF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,147.49
347 STE-1-056-73S-07- PF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,147.49
348 STE-1-056-73S-07- QF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [3] = 10 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,147.49
349 STE-1-056-741-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
350 STE-1-056-741-05- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
351 STE-1-056-741-05- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
352 STE-1-056-741-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
353 STE-1-056-741-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
354 STE-1-056-741-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
355 STE-1-056-741-07- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
356 STE-1-056-741-07- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
357 STE-1-056-741-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
358 STE-1-056-741-07- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
359 STE-1-056-741-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
360 STE-1-056-741-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
361 STE-1-056-741-07- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
362 STE-1-056-741-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
363 STE-1-056-741-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
364 STE-1-056-741-08- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
365 STE-1-056-741-08- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
366 STE-1-056-741-08- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
367 STE-1-056-741-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $622.52
368 STE-1-056-741-H5- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
369 STE-1-056-741-H5- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
370 STE-1-056-741-H5- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
371 STE-1-056-741-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
372 STE-1-056-741-H7- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
373 STE-1-056-741-H7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $740.51
374 STE-1-056-741-W7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $988.71
375 STE-1-056-742-05- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
376 STE-1-056-742-05- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
377 STE-1-056-742-05- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
378 STE-1-056-742-05- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
379 STE-1-056-742-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
380 STE-1-056-742-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
381 STE-1-056-742-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
382 STE-1-056-742-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
383 STE-1-056-742-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
384 STE-1-056-742-08- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $736.45
385 STE-1-056-742-08- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard 9/16
- 0 $736.45
386 STE-1-056-742-H7- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $854.44
387 STE-1-056-742-W7- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,102.64
388 STE-1-056-742-W7- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,102.64
389 STE-1-056-743-00- LB Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [B] = N/A
- 0 $2,250.03
390 STE-1-056-744-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $797.47
391 STE-1-056-744-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $797.47
392 STE-1-056-744-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $797.47
393 STE-1-056-744-07- OF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [O] = Voltage: 110/220 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $797.47
394 STE-1-056-744-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $797.47
395 STE-1-056-744-I8- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $968.36
396 STE-1-056-745-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
397 STE-1-056-745-05- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
398 STE-1-056-745-05- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
399 STE-1-056-745-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
400 STE-1-056-745-07- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
401 STE-1-056-745-07- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
402 STE-1-056-745-08- XF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875 with sleeve to convert to .625; Keyway: .19 x .09 
Standard AC Voltage Rating [X] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard 
Dated 1/17
- 0 $882.63
403 STE-1-056-746-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
404 STE-1-056-746-05- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
405 STE-1-056-746-05- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
406 STE-1-056-746-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
407 STE-1-056-746-07- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
408 STE-1-056-746-07- WF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [W] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
409 STE-1-056-746-07- YF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Y] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $980.58
410 STE-1-056-748-05- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,041.60
411 STE-1-056-748-07- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [8] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,041.60
412 STE-1-056-74S-05- QF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [4] = 15 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .625; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,228.86
413 STE-1-056-751-07- DF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [D] = Voltage: 110; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $695.76
414 STE-1-056-751-07- EF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [E] = Voltage: 200; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $695.76
415 STE-1-056-751-07- FF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [F] = Voltage: 230; 60 Hz (190; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $695.76
416 STE-1-056-751-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $695.76
417 STE-1-056-751-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $695.76
418 STE-1-056-752-07- HF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [H] = Voltage: 220; 50 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $805.61
419 STE-1-056-752-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $805.61
420 STE-1-056-752-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $805.61
421 STE-1-056-752-H7- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $923.61
422 STE-1-056-754-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
423 STE-1-056-754-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $866.65
424 STE-1-056-754-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $984.64
425 STE-1-056-755-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $939.89
426 STE-1-056-755-L7- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [5] = 20 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $939.89
427 STE-1-056-761-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
428 STE-1-056-761-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
429 STE-1-056-761-07- NF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [N] = Voltage: 575; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
430 STE-1-056-761-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
431 STE-1-056-761-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [1] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $773.06
432 STE-1-056-762-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $882.93
433 STE-1-056-762-07- LF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [L] = Voltage: 460; 60 Hz (380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $882.93
434 STE-1-056-762-07- PF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [2] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $882.93
435 STE-1-056-763-00- PC Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [3] = N/A 
Hub [ ] = N/A 
Standard AC Voltage Rating [P] = Voltage: 115/208-230; 60 Hz 
Leadwire Position [C] = N/A
- 0 $2,400.56
436 STE-1-056-764-07- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $943.95
437 STE-1-056-764-07- QF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $943.95
438 STE-1-056-764-H7- BF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [4] = IP 55 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [B] = Voltage: 115; 60 Hz 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,061.95
439 STE-1-056-765-07- TF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [T] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,017.19
440 STE-1-056-765-07- VF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [5] = IP 23 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [V] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,017.19
441 STE-1-056-766-07- UF Stearns Series 56,700 (1-056-7XX), IP 23, 54 & 55 Die Cast Aluminum: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 23 & 54 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [6] = IP 54 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [U] = N/A 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $1,127.05
442 STE-1-056-76S-07- QF Stearns Series 56,700 (1-056-7XS), IP 56 Stainless Steel: 
Release Type: Knob, Maintained with automatic reset 
Mounting Face: NEMA 56C, 143TC and 145TC 4.5" AK, 5.88" AJ 
Enclosure Protection: IP 55 & 56 
Manual Wear Adjustment 
Nominal Static Torque (lb-ft) [6] = 25 
Enclosure [S] = IP 56 
Hub [ ] = Bore: .875; Keyway: .19 x .09 
Standard AC Voltage Rating [Q] = Voltage: 208-230/460; 60 Hz (190/380; 50 Hz) 
Leadwire Position [F] = Lead wire position (internal and external, left and right) standard
- 0 $2,375.34
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About Stearns Products

 
About Stearns Products
 
Stearns is the leading manufacturer of spring-set electrically set motor brakes.
 
Choosing Stearns means you'll receive:
 
  • The broadest line of industrial brakes available from any
    single manufacturer.
  • The shortest lead times.
  • The best quality products to bring you maximum performance.
  • The most consistent and courteous customer service available in
    the power transmission business.
 
We always totally focused on the needs of its customers, setting the standard for brake and clutch quality, on-time performance, and commitment to innovative service.
 
Brakes

Motor Mounted Brakes

Double C-Face
Coupler Brakes

Division 1 Hazardous
Location Brakes

Division 2 Hazardous
Location Brakes

Encoder Brakes

Stainless Steel Motor
Mounted Brakes

Stainless Steel Double
C-Face Coupler Brakes

Marine, Maritime
and Navy Brakes

Servo and Stepper
Motor Brakes

Small Gearmotor Brakes

Small Gearmotor Brakes,
Quiet Operation

Small Gearmotor Brakes,
High Cycling Brake,
NEMA C-Face

Heavy Duty Electromagnetic
Spring Engaged Brakes

European Style
Direct Acting NEMA
C-Face Brakes

Brakes for Portal
Crane Applications

Quiet Brakes

Caliper Brakes

Bearing Supported
Thru-Shaft Brakes

MSHA Certified
Mining Brakes

Power On
Modular Brakes

Mechanical
Lockout Brakes
 

Brakes and
Replacement Parts
 
 
 
Clutches

Heavy Duty Electrically
Engaged Clutches
 

Heavy Duty Spring
Engaged Clutches
 

Power On Modular
Clutch Brakes
 

Power On Modular
Clutches
 

Small Industrial
Clutches
 
 
Solid State Switches for Single Phase Motors (SINPAC)

Switches for Capacitor Start
and Start, Run Motors
 

Switches for Capacitor
Start Motors
 

Switches for Capacitor
Start, Run Motors
 

Switches for Instant Reverse
Capacitor Start Motors
 

Switches for Split
Phase Motors
 
 
Miscellaneous Products

Foot Mounting Kits
 

Industrial Solenoids
 

Motor Frame Adapter Kits
 

Rectifiers
 

Installation and Maintenance Documentation
 
 
This web site is owned and operated by Brake Products, Inc.
Brake Products, Inc.   16751 Hilltop Park Place
  Chagrin Falls, Ohio 44023
  Phone: (440) 543-7962
  Fax:     (440) 543-7963
  Web:   www.brakeproducts.com
  Email: sales@brakeproducts.com
  Federal ID #: 34-1473351
  CAGE Code: 1QTP8
  DUNS# 14-748-2392
  Download: Form W-9
Supplier of Industrial Brake Parts Since 1985