Wire The Junction Box - enphase AC Battery Installation Manual

4. Wire the Junction Box

a. Size the conductors (Line, Neutral and Ground) depending on the upstream breaker or fuse. Use 12
AWG to 20 AWG (2.5 mm
DANGER! Risk of electric shock. Check that the dedicated circuit breaker protecting the
branch where the AC Battery will be connected is turned off before wiring.
WARNING! Risk of equipment damage. Always connect to two Lines (active) and to one
Neutral.
b. Using the conductors and suitable conduits, connect the AC disconnect (if used) and the first
adjacent AC Battery junction box. Use the openings provided by the knockouts to connect the
conduit and pass the wires through them.
NOTE: Do not modify or rewire the pre-installed wiring or bonding connections in the junction
box.
c. Connect each wire in the junction
box to its corresponding conductor
(Line, Neutral and Ground). Each
push terminal accepts two 12 AWG
to 20 AWG (2.5 mm
conductors (7/16-inch strip length).
Use a screw driver to depress the
terminal.
d. After all wires in the junction box
are connected and secured, check
that there are no exposed
conductors.
e. If connecting additional AC
Batteries, use another conduit and
set of wires to connect out of the
junction box to the next junction
box.
Gently arrange all the wires and
f.
connectors inside the junction box
and replace the cover. Tighten the
cover screw using a Phillips screw
driver.
DANGER! Risk of electric
shock. The system is not
ready to be energized! Do
not close the circuit
breaker yet.
13
to 4 mm ) wire with maximum 20A branch circuit protection.
2 2
2 to 4 mm 2 )
© 2016 Enphase Energy Inc.
AC Battery Installation
141-00036 Rev 01