© 2019 Enphase Energy Inc.
13
4. Wire the Junction Box
DANGER
! Risk of electric shock. Check that the dedicated circuit breaker protecting the
branch where the AC Battery is to be connected is turned off before wiring.
WARNING
! Risk of equipment damage.
Never connect an Enphase AC Battery
junction box to two active conductors.
Always connect to one Line (active) and
one Neutral.
a.
Size the conductors (Line, Neutral and Earth)
depending on the upstream breaker or fuse. Use
2.5mm
2
to 4mm
2
wire with maximum 20A
branch circuit protection.
b.
Using the conductors and suitable conduits,
connect the AC isolator (if used) and the first
adjacent AC Battery junction box. Use the
openings provided by the knockouts to connect
the conduits and pass the wires through them.
NOTE
: Maintain 230 VAC single-phase
wire colours:
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 Earth).
Each push terminal accepts two 2.5mm
2
to 4mm
2
conductors (11mm strip length).
For each, use a
screw driver to depress and open the terminal, then insert the stripped conductor
.
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.
f.
Gently arrange all the wires and 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 energised! Do not close the
circuit breaker yet.
KEY:
1. Terminal block
2. Earth from AC isolator or previous junction box
3. Earth to next junction box, if needed
4. Neutral from previous junction box
5. Neutral to next junction box, if needed
6. Line from previous junction box
7. Line to next junction box, if needed
8. Junction box AC connector
9. Line from this junction box, to connector
10. Neutral from this junction box to connector
11. Earth from this junction box, to chassis screw
