Emerson FPC Manuel D’Utilisation
Equipment Inspection and Startup
24
Table 11
Torque specifications, general
Electrical connections
with 1 Belleville washer
Electrical connections
with 2 Belleville washers
Torque
Torque
lb-in
N-m lb-in
N-m
Bolt shaft size, in./mm
1/4 / M6
40
4.5
80
9.0
5/16 / M8
80
9.0
180
18.0
3/8 / M10
120
13.6
240
27.1
1/2 / M12
480
54.3
—
—
Input and output breakers
Up to 150 amp
Up to 150 amp
80
9.0
160
18.0
175 - 500A
120
13.6
240
27.1
Table 12
Panelboard main circuit breaker torque specifications
Torque
lb-in
N-m
Busbar-to-breaker 240 27.1
Table 13
Branch circuit breaker torque specifications
Breaker size
lb-in
N-m
Up to 30 amp
20
4.0
40 to 100 amp
20
5.1
Table 14
Terminal block compression lug torque specifications
AWG wire size
or range
Torque
lb-in
N-m
#14 - #10
35
4.0
#8
40
4.5