19
IQ System Controller 3M quick install guide
AWG TORQUE LB.IN
14–10 25
8 30
4–6 35
2–3 40
IQ Battery wiring
PV/IQ Battery connections
Additional IQ Battery/
PV wiringPV wiring
Connect the DER (IQ Battery, IQ Combiner, and PV) wires to the lugs at the bottom, as indicated in the following images.
Refer to the wiring table and torque recommendation before connecting the wires. Refer to local codes for any specic local
requirements.
2–14 AWG
1/8"
DER wiring
Section C - Wiring
NEUTRAL AND GROUND CONNECTIONS AWG TORQUE LB.IN
Neutral and ground bar – large holes
1/0–3 50
4–6 45
8 40
10–14 35
Neutral and ground bar – small holes
6–8 25
10–14 15
Neutral lugs 300 kcmil–6 275
3/8"
5/16"-24 UNF
#10-32 UNF
1/0–14 AWG
300 kcmil–14 AWG
WARNING: Use only high-quality
machined (milled) hex form bit with
0.2+ inch (5+ mm) length and 0.139 inch
(3.53 mm) minimum across hex points.
NOTE
: The ground bar does not support cables higher than 1/0 to
be compliant with the bending radius as per the standards.