Remove An Unused Circuit Breaker (Optional) - enphase AC Combiner Box Installation Manual

3. Remove an Unused Circuit Breaker (optional)

The combiner includes three 20 A, 2-pole circuit breakers for combining inputs. If required by local
jurisdiction, you can remove one 2-pole breaker if there are only two branch circuits. If you do not need to
remove a circuit breaker, skip this step.
a. Use a straight blade screwdriver to completely loosen the busbar side of the Line 1 and Line 2
terminal blocks (gray).
b. Remove any load wire(s) on the breaker you want to remove.
c. Loosen the busbar lug(s) of only the breaker you want to remove.
d. Release the DIN rail locking tabs of all breakers.
e. Rock the breaker/busbar assembly to the left to release it from the DIN rail, and remove the breaker.
Rock the breakers back to the right so they are seated back on the DIN Rail.
f.
g. Lock all of the breaker locking tabs.
h. Tighten the busbar side of the Line 1 and Line 2 terminal blocks (gray) to 14 in-lbs (1.6 Nm).
Verify that all busbar connections are tight.
i.
Install the blanking plate onto the dead front over the location of the removed breaker using the
j.
screws provided. Every AC Combiner Box comes with an XA-SLOT spares kit with two screws and a
blanking plate.
12
Locking tabs
Loosen these
screws
© 2016 Enphase Energy Inc.
AC Combiner Box Installation
Blanking
plate
141-00030 Rev 02