enphase IQ System Controller 3 INT User Manual

11
IQ System Controller 3 INT Quick Install Guide
Connect DER, mains, and load wires as mentioned below:
• Backup loads: backup load lug (1), neutral bar (10)
• Mains: mains lugs (2), neutral bar (10), earth bar (9)
• Non-backup loads: non-backup load lugs (3), neutral bar (10),
earth bar (9)
• PV: PV L1, L2, L3 (4), neutral lugs (6) through PV breaker (B1)
• IQ Battery: IQ Battery L1, L2, L3 (5), neutral bar (10)
Power terminals
Backup load lug
Mains lugs
Non-backup load lugs
Earth bar
Neutral bar
PV neutral lugs
DER termination label
Main relay label
PV lugs
IQ Battery lugs
Section B - Wiring
NOTE: Connect L1, L2, and L3 mains, loads, and PV as
indicated on equipment labels (12, 13). Maintaining correct
phase continuity is necessary for proper operation.
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
WARNING: PV neutral must be wired to breaker before landing
on neutral lugs. Battery neutral must be wired to neutral bar.

enphase IQ System Controller 3 INT Specifications

General

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