O
N
O
FF
O
N
O
FF
20
O
N
O
FF
O
N
O
FF
20
O
N
O
FF
O
N
O
FF
20
O
N
O
FF
5
Wire Inputs from the AC Branch Circuits
The combiner comes with three 20A circuit breakers (16A continuous) to
which you must wire the device AC branch circuits.
A ) Use copper conductors sized to meet local code requirements and
voltage drop/rise considerations (breaker lug is rated for 14 to 6 AWG
copper for branch inputs).
B ) Bring in the wires from each AC branch circuit (PV and/or battery).
C ) Connect the neutral (white) to the neutral busbar and the ground (green
or green/yellow) to the ground busbar. Torque to 45 in-lbs (5 Nm).
D ) If an AC Battery branch circuit is installed, connect the neutral (white)
from that circuit to the neutral busbar. Torque to 45 in-lbs (5 Nm).
E ) Pass the L1 conductors from each PV branch circuit through the produc-
tion CT in the same direction as the arrow on the side of the CT.
F ) Connect L1 and L2 (usually one black and one red) from each AC branch
circuit (PV and/or battery) to the circuit breakers.
G ) Torque to 20 in-lbs (2.4 Nm).
Wire the Output Connections
A ) Use conductors sized per local code requirements (output lug is rated
for 14 to 4 AWG copper conductors for combined output) taking into
consideration the voltage drop/rise and upstream breaker or fuse.
B ) The two DIN rail terminal blocks above the circuit breakers are the
output connections. Install the black wire into the lower terminal block
and the red into the upper terminal block.
C ) Torque to 14 in-lbs (1.6 Nm).
D ) Connect the neutral (white) to the neutral busbar.
E ) Connect the ground (green or green/yellow) to the “Ground” busbar
and torque to 45 in-lbs (5 Nm).
5
Warning!
Observe bend radius require-
ments when routing wires.
5A outlet for
Enphase
accessories only
Enphase Envoy-S
Neutral busbar
Ground busbar
Combiner output:
Line 2
Line 1
Breaker for
5A outlet
Combiner
breakers
Production CT
PV inputs
6
WIRING DETAIL
AC Battery
input
Output to
load center
Note
:
Do not pass conductors from AC Battery branch circuits
through the production CT. This will distort production readings.
WIRING REFERENCE
The following lists tightening torque, allowable wire size, and type for
field-wiring terminals:
•
20 in-lbs tightening torque for circuit breaker connections
•
14 in-lbs tightening torque for combined output connections
•
45 in-lbs tightening torque for large neutral and ground busbar screws
(1/0-14 AWG)
•
20 in-lbs tightening torque for small neutral and ground busbar screws
(6-14 AWG)
•
14 to 6 AWG for branch inputs
•
14 to 4 AWG for combined output
•
Wire type: 75°C or higher copper conductors, rated for wet locations
