Drawing

October 1997
Dimension Sheet
29-170H
Page 4
Series C HMCP Motor Circuit Protectors, 3-600 Amperes
Cutler-Hammer
Westinghouse & Cutler-Hammer Products
Five Parkway Center
Pittsburgh, Pennsylvania, U.S.A. 15220
Printed in U.S.A.
J-Frame
Drilling Plans
Line End
Load End
Breaker Shown in OFF Position
Breaker Mounting
Rear Connecting Studs
Front Cover Cutout
Drawout Support Blocks
Line End
Load End
Reproduced from drawings 1491D65 and 1491D67
Dimensions in parentheses in millimeters
Breaker
Dimension
Status A B C D E F Hdl. Oper. Force
On 5.24 (132.10) 5.12 (130.05) 5.54 (140.72) 5.49 (139.45) 4.77 (121.56) 4.72 (119.89) 32 Lb. (142.3 Nm)
Tripped 4.79 (121.67) 4.71 (119.63) 5.10 (129.54) 5.10 (129.54) 4.87 (123.70) 4.85 (123.19)
Off 4.02 (102.11) 4.06 (103.12) 4.33 (109.82) 4.45 (113.03) 4.91 (124.71) 4.95 (125.73) 22 Lb. (97.9 Nm)
Reset 3.91 (99.31) 3.96 (100.58) 4.21 (106.93) 4.36 (110.74) 4.90 (124.46) 4.95 (125.73) 38 Lb. (169.0 Nm)
ON/
OFF/
3.625
(92.08)
2.250
(57.15)
1.125(28.58)
1.812
(46.04)
3.094
(78.59)
4.813
(122.25)
.375(9.53)
Contact Position
Indicators
Red-ON
Green-OFF
White-TRIP
.375
(9.53)
.750(19.05)
C
L
of Breaker
.147 (3.73)
Diameter
8 Holes .500
(12.70) Deep to
Accept #8
Thread Cutting
Screws
.500
(12.70)
Dia.
.281
(7.14)
Dia.
Breaker Mounting Holes
Use .250-20 (M6X1) X
2.875 (73.025) Pan Head
Screw With Sems.
Tightening Torque
65 Lb-in (7.34) Nm.
2.375
(60.33)
.500
(12.70)
C
.312
(7.29)
Dia.
A
B
D
E
F
C
L
Handle
.500 (12.70)
Diameter
3 Megger
Holes
If Required
1.562
(39.67)
.781
(19.84)
2.922
(74.22)
3.938
(100.03)
.344 R
(8.74) R
.718
(18.24)
.875
(22.23)
3.328
(84.53)
1.375
(34.93)
2.750
(69.85)
3.500
(88.90)
.188 R
(4.78) R
C
L
Breaker
C
L
Handle
1.750
(44.45)
2.750
(69.85)
1.375
(34.93)
.375
(9.53)
.750
(19.05)
.813
(20.64)
4.891
(124.23)
8.094
(205.59)
.813
(20.64)
.250
(6.35)
.500
(12.70)
1.375(34.93)
.688(17.46)
.438 (11.13) Dia.
4 Holes
.563 R
(14.29) R
.563 R
(14.29) R
C
L
C
L
Handle
1.375
(34.93)
7.250
(184.15)
4.078
(103.58)
.688
(17.46)
.250-20
(M6X1)
Tap
4 Holes
C
L
Handle
C
L
Omit 2
Center Holes
for 2-Pole
Breakers
.625 (15.88)
Dia
6 Holes
2.750
(69.85)
1.375
(34.93)
4.891
(124.23)
8.094
(205.59)
C
L