enphase IQ System Controller 3 INT Quick Install Manual page 19

Section B - Wiring
Single-phase home
Field wiring two branches of single-phase
PV and single-phase IQ Battery
PV neutral
PV L1
PV neutral
PV L1
NOTE: Do not change the IQ Gateway breaker position from
slot number 19 (indicated in dead front).
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 L1
IQ Battery lug
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.
NOTE: The neutral from the 2nd single-phase PV branch
is landed on the pre-installed 4-pole breaker and then
terminated at PV neutral lug (6).
Legends
L1
Neutral
IQ Battery neutral
IQ Battery L1
PV
PV
* 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 TO R Q U E S T R I P L E N G T H
(Sq. m m ) ( N m ) (m m )
2.5 - 35
6 12
2.5 - 35
5 10
2.5 - 16
2.2 10
IQ Battery(s)
19