enphase IQ System Controller 3 INT User Manual

19
IQ System Controller 3 INT Quick Install Guide
Section B - Wiring
PV neutral
PV neutral
PV L1
PV L1
NOTE: Do not change the IQ Gateway breaker position from
slot number 19 (indicated in dead front).
PV
PV
IQ Battery neutral
IQ Battery(s)
IQ Battery L1
IQ Battery lug
PV L1
PV breaker*
IQ Battery breaker^
IQ Gateway breaker (pre-installed and pre-wired)
* 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.
Single-phase home
Field wiring two branches of single-phase
PV and single-phase IQ Battery
CONNECTIONS
WIRE SIZES
(Sq.mm)
TORQUE
(N m)
STRIP LENGTH
(mm)
IQ System Controller 3 INT lugs
2.5 - 35
6 12
Neutral and ground bar large
holes
2.5 - 35
5 10
Neutral and ground bar small
holes
2.5 - 16
2.2 10
PV neutral lug (pre-wired to neutral pole on 4-pole breaker)
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).
Neutral bar
L1
Legends
Neutral

enphase IQ System Controller 3 INT Specifications

General

Brand	enphase
Model	IQ System Controller 3 INT
Category	Controller
Language	English