OutBack Power Installation Manual
Installation 
40  900-0123-01-00 Rev C 
Bypass Assembly 
Bypass switching can be used when the inverter is shut down for maintenance. This topic is discussed 
more beginning on page 42. The GSLC can be equipped with the GS-IOB-230VAC 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-230VAC is described on page 42.) 
If the GSLC has no bypass assembly, connections should be made directly to each TBB from the circuit 
breakers for the inverter, AC sources, and loads. These connections are designated in Figure 35. 
Wiring diagrams for an assembled 230 Vac system are shown beginning on page 48.
Figure 36  Inverter AC Connections (single-phase) 
To make the connections to the 
Radian inverter:  
1.  Designate the topmost AC circuit breaker  
as the inverter AC output disconnect.  
Install a wire from the AC output circuit TBB 
(as shown in Figure 35) to that disconnect 
as marked by 1. 
2.  Install a wire on the left side of the 
disconnect as marked by 
2. Connect the 
wire to the appropriate output terminals on 
the Radian inverter. 
3.  Designate the third AC circuit breaker as  
the disconnect for one AC source (GRID or 
GEN). Install a wire from the TBB of the 
appropriate source circuit (as shown in 
Figure 35) to the left side of that disconnect 
as marked by 
3. 
4.  Install a wire on the right side of the source 
disconnect as marked by 
4. Connect the 
wire to the appropriate input terminal on 
the Radian inverter (the terminal labeled 
either GRID or GEN). 
5.  If a second AC source is present, repeat 
steps 3 and 4. 
6.  Install a wire on the inverter’s NEU terminal 
and connect it to the GSLC’s neutral TBB 
(as shown in Figure 35). Only one neutral 
connection is required. 
GRID and GEN inputs 
AC output 
Disconnects 
2 
4 
1 
3 










