Installation Manual

Installation

42 900-0123-01-00 Rev C

Figure 38 Maintenance Bypass Wiring (single-phase)

Multiple-Inverter Installations (Stacking Inverters)

When multiple Radian inverters are stacked for additional power, the basic wiring is repeated for each

inverter. However, several factors need to be considered.



One GSLC is required for each Radian inverter. A single GSLC cannot be sized to handle the requisite current

for multiple Radian inverters.



If more than two Radian inverters are installed, it is recommended to install a separate distribution panel to

distribute incoming power to each GSLC individually. It may be advisable to install separate AC distribution

panels to distribute input and output power to each GSLC.



The GSLC maintenance bypass assemblies cannot be used when more than one Radian inverter is stacked.

See the next section.

Bypass Switches

Inverter systems are often equipped with maintenance bypass switches or interlocks. If the inverter

system ever needs to be shut down or removed, its AC sources and loads must be disconnected. A

bypass device allows the AC source to “bypass” the inverter and deliver power directly to the loads.

This can minimize disruption to the system and it avoids the need for extensive rewiring.

WARNING: Shock Hazard or Equipment Damage

 Bypassing multiple sources will usually connect the sources to each other, which may

damage one or both sources. It can otherwise result in power being routed to

inappropriate places.

 The bypass assembly does not disconnect the inverter’s AC input. Even with the

inverter bypassed, any AC input source may be a shock hazard unless disconnected.

To wire the GS-IOB-230VAC

after installation:

1. On the disconnect for the AC

source that will be used during

bypass, install a wire from the

left side as shown by

Connect it to the input bypass

switch as shown by 2.

2. Install a wire on the right side of

the input bypass switch as

shown by

3. Connect it to the

right side of the output switch

as shown by 4.

Output

Inverter Bypass

AC Source