Product Manual

3. Installation8-2018
31A056K730 (Issue 4) Copyright © 2018 Cummins Inc.
TABLE 4. SCREW TYPE TERMINALS AND TORQUE VALUES FOR SERVICE ENTRANCE MODEL POWER
CONNECTIONS (UTILITY CIRCUIT BREAKER AND GENERATOR AND LOAD TERMINALS)
Switch Size
(Amps)
Terminal Description
Utility Circuit Breaker Generator and Load Terminals
Cables per
Pole
Range of Wire
Size
Tightening
Torque
Cables per
Pole
Range of Wire
Sizes
Tightening
Torque
100 Amp 1
#4 AWG to 300
MCM
250 in-lb (28
Nm)
1
#14 to 2/0
AWG
120 in-lb (14
Nm)
200 Amp 1
#4 AWG to 300
MCM
250 in-lb (28
Nm)
1
#6 AWG to 300
MCM
275 in-lb (31
Nm)
400 Amp 2
2/0 AWG to
250 MCM
275 in-lb (31
Nm)
1
3/0 AWG to
600 MCM
275 in-lb (31
Nm)
TABLE 5. SCREW TYPE TERMINALS AND TORQUE VALUES FOR SERVICE ENTRANCE MODEL POWER
CONNECTIONS (NEUTRAL TERMINALS, GENERATOR NEUTRAL TERMINALS, AND GROUND TERMINALS)
Switch
Size
(Amps)
Terminal Description
Neutral Terminals Generator Neutral Terminals Ground Terminals
No. of
Cables
Range of
Wire
Sizes
Tightening
Torque
No. of
Cables
Range of
Wire
Sizes
Tightening
Torque
No. of
Cables
Range of
Wire
Sizes
Tightening
Torque
100 Amp 3
#14 to 2/0
AWG
120 in-lb
(14 Nm)
1
#14 to 2/0
AWG
120 in-lb
(14 Nm)
6
#14 to 1/0
AWG
120 in-lb
(14 Nm)
200 Amp 3
#14 to 2/0
AWG
120 in-lb
(14 Nm)
1
#14 to 2/0
AWG
120 in-lb
(14 Nm)
6
#14 to 1/0
AWG
120 in-lb
(14 Nm)
400 Amp 3
3/0 AWG
to 600
MCM
275 in-lb
(31 Nm)
1
3/0 AWG
to 600
MCM
275 in-lb
(31 Nm)
4
#6 to 3/0
AWG
160 in-lb
(18 Nm)
3.2.2 Low Voltage Signal Connections
3.2.2.1 Control Wiring Connections
For RA 100A/200A, control wiring connections are made at terminal block TB4, located on the lower left
side of the enclosure.
For RA 400A, control wiring connections are made at terminal block TB4, located on the upper left area of
the enclosure.