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necessary, examine applicable codes for specific AC and DC wiring proximities. Figure 1-4 is an
illustration of the AC wiring compartment.
Figure 1-4
AC Wiring Compartment
AC Wiring and GFCIs –
AC input must be hardwired to the inverter. AC loads can either be
plugged into the GFCI mounted to the front panel of the inverter, or hardwired directly to the
panel. This section will explain how to hardwire the inverter with AC input and output. All AC
wiring (source to inverter, inverter to AC panels, AC panels to circuit breakers, and GFCIs) must
be rated to at least the current rating of the fuses and/or circuit breakers, and also must be
insulated to at least 120Vac. Multi-strand wire is recommended. Typically, 30A circuit breaker
requires a 10AWG wire.
The knockouts for AC input and output hardwiring are located on the front sidewalls. Make sure
to read the labels on the inverter for proper input and output wiring.
AC Input Connections
1.
Ensure AC and DC power are OFF.
2.
Install required circuit breaker to the AC input wiring system.
3.
Remove mounting screws holding the GFCI AC receptacle and take off the front panel.
4.
Leave the GFCI inside the inverter, but remove the knockout from the sidewall.
5.
Locate the terminal blocks. The whole area will be labeled “AC INPUT” and there will be
three terminations:
(GND)
(L)
(N)
6.
Strip enough of the input cable jacket as to expose the three wires, about 2 inches
(50mm).
7.
Strip approximately 3/8 inches (10mm) of insulation from each wire. The terminal blocks
will accept wire sizes up to 10AWG.
8.
Feed the AC input cable into the knockout hole. Facing the front panel of the inverter this
should be on the left, and the label should read “AC INPUT.”
9.
Using a screwdriver, loosen the terminal screws.
10.
Fasten the ground (GND) wire first.
