Section C - Wiring
Wire size and torque table
CONNECTION WIRE SIZES TORQUE
DG breaker
14-10 AWG
8 AWG
6-4 AWG
2.2 N m (20 Ib-in)
2.8 N m (25 Ib-in)
3.0 N m (27 Ib-in)
DG breaker (for 60 A circuit breaker) 4-1/0 AWG 5.0 N m (45 Ib-in)
IQGateway breaker 14-10 AWG 2.26 N m (20 Ib-in)
IQGateway power terminals 14-10 AWG 1.4 N m (12.4 Ib-in)
Large screw - Neutral and ground
2-1/0 AWG
14-3 AWG
5.6 N m (50 Ib-in)
5.1 N m (45 Ib-in)
Small screw - Neutral and ground
6 AWG
8 AWG
10-14 AWG
3.6 N m (32 Ib-in)
2.6 N m (23 Ib-in)
2.3 N m (20 Ib-in)
Main lug
10-4 AWG
3-2/0 AWG
5.0 N m (45 Ib-in)
5.6 N m (50 Ib-in)
CTRL connectors
CTRL cables (C1, C2)
Drain cables
18 AWG
18 AWG
0.2 N m (1.77 Ib-in)
0.2 N m (1.77 lb-in)
Copper conductors only, rated min. 75°C. Follow NFPA 70 (NEC) or CSA C22. 1 part 1, and all local
codes. For DG breakers larger than 20 A, use wire insulated for 90°C based on 75°C ampacities.
Ground
DG breaker
DG breaker
CTRL connectors
DG breaker
IQGateway power terminal
DG breaker
IQGateway breaker
Neutral
IQ Combiner 5/5C Quick Install Guide21
Main Lug
Main Lug
NOTE: The IQ Gateway is pre-wired to a 15A breaker in the IQ Combiner. Any additional load installed on this breaker should use a cable size of 14 AWG. The
typical current drawn by the IQ Gateway is 20mA. The maximum continuous current of all loads protected by this breaker should not exceed 12 A. When
adding additional loads to the breaker, the installer must comply with all NEC and local electrical codes.