Outback Radian GSLC Planning Guide

Page 6
900-0222-12-00 Rev A
©2019 OutBack Power Technologies. All Rights Reserved.
Page 7
Installation
Wiring
Remove Covers
Remove 3
Screws
Interior Cover
Remove 3
Screws
Mounting the GSLC to the Inverter
For instructions on mounting the GSLC to the inverter, see the Radian Quick Start Guide;
more details are also available in the GSLC online manual: http://outbackpower.com.
Remove 4 Screws
To remove front
door, open 90
degrees and
lift straight up.
Please carefully review the Radian Quick Start Guide for important GSLC wiring information. The information presented
here highlights key wiring considerations but is not comprehensive.
See also the GSLC online manual: http://outbackpower.com.
Bonding
All GSLC models, including those in prewired applications, are equipped with a mechanical bond
between AC neutral and ground.
Some models are equipped with a mechanical bond between DC negative and ground. These
can be useful in stand-alone systems where no other bond is provided. If other bonds are
present, or if a GFDI is installed later, the GSLC bond needs to be removed.
WARNING: Shock Hazard
If the GFDI is manually installed, the negative-ground bond on the GSLC must be removed. This must also be done if any other
PV ground fault device is present that establishes its own negative-ground bond.
NOTE:
Models equipped with a GFDI do not include the mechanical bond inside the housing, as the GFDI provides a bond instead.
The 300 Vdc models do not include an internal bond, as they are intended to be used with charge controllers that have GFDI
protection built in.
The GSLC’s neutral bus bar is located in the lower
right portion of the GSLC. The neutral-ground bond
is established at one end of the bar, near the base of
the GSLC.
The GSLC’s negative (–) bus bar is located
near the top of the GSLC. It is attached to the
inverter negative (–) bus and its shunt.
To remove either of the bond connections:
1. Using a Phillips screwdriver, remove the screw shown above.
2. Remove the metal standoff beneath the bus bar. The screw
and bus bar provide the mechanical bond to the chassis
ground.
3. Rotate the TBB mount. Insert the bus bar into the open end
of the TBB mount so that the TBB mount supports the bus
bar. It may be necessary to loosen the TBB mount screw
before rotating it.
4. Retighten the screw to secure the TBB mount.
NOTE:
 If the TBB is connected directly to the
enclosure by a screw, then the bond is
connected. If the TBB is held by the TBB
mount and the TBB mount is secured to the
enclosure, the bond is disconnected.
 The installed Neutral TBB has white
insulators. A second Neutral TBB with blue
insulators is included in the kit for locations
where blue is standard.
Screw
TBB mount
Standoff
Bottom of GSLC
Screw
Top of GSLC
TBB mount
Standoff
Inverter
Negative
Bus Bar
Interior
Cover
Top
Front
Cover