Installation, Bypass assembly – Outback Power Systems GS Load Center Installation Manual User Manual
Page 32

Installation
30
900-0123-01-00 Rev B
Bypass Assembly
Bypass switching can be used when the inverter is shut down for maintenance. This topic is discussed 
more beginning on page 34. The GSLC can be equipped with the GS-IOB-120/240VAC bypass 
assembly. The instructions on this page are for making external connections to the bypass assembly 
after installation. (The installation wiring for the GS-IOB-120/240VAC is described on page 33.) 
If the GSLC has no bypass assembly, wiring connections should be made directly to each TBB from the 
Radian inverter, AC sources, and loads. These connections are designated in Figure 30. 
Wiring diagrams for an assembled 120/240 Vac system are shown beginning on page 37.
Figure 31
Inverter AC Connections (split-phase)
To make the connections to the Radian inverter:
1.
Designate the top AC circuit breaker as the 
inverter AC output disconnect. Install a wire from 
the black AC output TBB (as shown in Figure 30) 
to the disconnect marked by 
1
.
2.
Install a wire from the red AC output TBB to the 
disconnect marked by 
2
.
3.
Install wires on the left side of the disconnect as 
marked by 
3
and
4
. Connect these wires to
the appropriate L1 and L2 output terminals on 
the Radian inverter. 
4.
Designate the third AC circuit breaker from the 
top as the disconnect for one AC source (GRID or 
GEN). Install a wire from the black source circuit 
TBB (as shown in Figure 30) to the disconnect 
marked by 
5
.
5.
Install a wire from the red source circuit TBB to 
the disconnect marked by 
6
.
6.
Install wires on the right side of the disconnect 
as marked by 
7
and
8
. Connect these wires to
the appropriate L1 and L2 input terminals on the 
Radian inverter (the terminals labeled either GRID 
or GEN). 
7.
If a second AC source is present, repeat these 
steps using the second circuit breaker. 
8.
Install a wire on the inverter’s NEU terminal and 
connect it to the GSLC’s neutral TBB (as shown in 
Figure 30). Only one neutral connection is required. 
GRID and GEN inputs
AC Output
Disconnects
8
2
3
4
5
6
7
1
