Section B - Wiring
Three-phase home
Field wiring three-phase PV and three-phase IQ Battery
PV neutral
PV L1, L2, and L3
IQ Battery L1, L2, and L3
NOTE: Do not change the IQ Gateway breaker position from
slot number 19 (indicated in dead front).
WARNING! Do not daisy chain neutral wire across batteries
on different phases. Each phase of batteries must have a
separate neutral wire that is terminated on the neutral bar in
the IQ System Controller 3 INT.
IQ System Controller 3 INT Quick Install Guide
C O N N E C T I O N S
IQ System Controller 3 INT lugs
Neutral and ground bar large
holes
Neutral and ground bar small
holes
PV lugs
IQ Battery lugs
PV neutral lug (pre-wired to neutral pole on 4-pole breaker)
Neutral bar
PV breaker*
IQ Battery breaker^
IQ Gateway breaker (pre-installed and pre-wired)
WARNING! PV neutral must be connected to breaker.
Legends
IQ Battery neutral
PV
IQ Battery(s)
* Pre-installed four-pole breaker to be used for PV wiring.
^ Breakers should be sized as per local requirements and procured
separately. They are not supplied with the IQ System Controller 3 INT.
W I R E S I Z E S
(Sq. m m )
2.5 - 35
2.5 - 35
2.5 - 16
L1
L3
L2
Neutral
IQ Battery(s)
IQ Battery(s)
TO R Q U E
S T R I P L E N G T H
( N m )
(m m )
6
12
5
10
2.2
10
24
Need help?
Do you have a question about the IQ System Controller 3 INT and is the answer not in the manual?