enphase IQ System Controller 3 INT User Manual

16
IQ System Controller 3 INT Quick Install Guide
Section B - Wiring
* Pre-installed four-pole breaker to be used for PV wiring.
PV neutral lug (pre-wired to neutral pole on 4-pole breaker)
PV L1
PV breaker*
IQ Gateway breaker (pre-installed and pre-wired)
PV neutral
PV L1
PV
Single-phase home
Field wiring one branch of single-phase PV
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
NOTE: Do not change the IQ Gateway breaker position from
slot number 19 (indicated in dead front).
WARNING! PV neutral must be connected to breaker.
L1
Legends
Neutral

enphase IQ System Controller 3 INT Specifications

General

Model	IQ System Controller 3 INT
Rated voltage	240V
Frequency	50/60 Hz
Maximum Continuous Output Current	32 A
Grid support	Yes
Product type	Controller
Communication	Wi-Fi, Ethernet
Compatibility	Enphase IQ Microinverters
Number of phases	Single phase
Humidity Range	5% to 95% (non-condensing)