Installation
22
900-0123-01-00 Rev
A
Installing PV and AC Circuit Breakers and GFDI
Figure 17
Circuit Breakers
To mount circuit breakers:
1.
It may be necessary to remove the knockout from the
location where the circuit breaker is to be placed to
make room for the circuit breaker to be installed. Be
sure to remove any debris that may occur from
removing the knockout.
2.
Place each circuit breaker behind the premounted
rail. Center the device so that the raised area around
the switch protrudes through the bracket. It may be
necessary to hold the device in place by hand.
2.
When the circuit breaker is in place, insert the screws
included with each breaker through the holes in the
mounting rail.
3.
Tighten until secure, but do not over-tighten.
NOTES
The circuit breakers may not all have the same number of poles. AC circuit
breakers used with the Radian inverter, such as the one shown to the left, are
dual-pole and require two rail slots. Make certain to plan the layout
accordingly.
Although there are no specific designations, the upper end of the mounting
rail is generally used for AC devices (including the maintenance bypass). The
lower end is generally used for DC devices, including the GFDI. The
preassembled GSLC models follow this convention.
A PV ground-fault device may be required. The OutBack GFDI comes
prewired for this purpose in some GSLC versions. It can also be purchased
separately. The GFDI mounts the same way as other circuit breakers. Once
mounted, see page 31 and the GFDI manual for wiring instructions.
Some installations may require an AC maintenance bypass. The bypass
comes prewired for a single Radian inverter in some GSLC versions. It can also
be purchased separately. See page 33 and the GS-IOB manual for mounting
and wiring instructions.
Dual-pole
Circuit Breaker
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