Installing pv and ac circuit breakers and gfdi, Installation – Outback Power Systems GS Load Center Installation Manual User Manual
Page 20

Installation
18
900-0123-01-00 Rev B
Installing PV and AC Circuit Breakers and GFDI
Figure 19
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 the screws until secure, but do not 
over-tighten. 
NOTES 
 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 is pre-installed on some models. With other
models it can be purchased separately for manual installation. (See page 11.) The GFDI mounts the same 
way as other circuit breakers. Once mounted, see page 27 and the GFDI manual for wiring instructions. 
(Note that the GFCI usually requires multiple rail slots.) 
 Some installations may require an AC maintenance bypass. This is referred to as the Input-Output Bypass or
IOB. The bypass comes prewired for a single Radian inverter in some GSLC versions. It can also be purchased 
separately. See page 29 and the GS-IOB manual for mounting and wiring instructions. 
