Wiring
900-0123-01-00 Rev
A
27
Wiring
Table 3
Terminal Bus Bar (TBB) Wire Size and Torque Requirements
Conductor Size
Torque Requirements
AWG mm2
In-lb Nm
#14 – #10
2.5 – 4
20
2.3
#8
6 – 10
25
2.8
#6 – #3
16 – 25
35
4.0
#2 35
40 4.5
#1 – 1/0
50
50
5.7
Grounding
WARNING: Shock Hazard
The unit must be connected to a grounded, permanent wiring system. If a bond is made
between neutral and ground, make sure only one bond is present in the AC system at any
time.
The GSLC comes equipped with a neutral-ground bond.
This bond may need to
be disconnected. Some codes require the bond to be made at the main panel only.
WARNING: Shock Hazard
For all installations, the negative battery conductor should be bonded to the grounding
system at only one point.
The GSLC comes equipped with a negative-ground bond.
This bond may need to be disconnected. If the OutBack GFDI is present, it can provide the
bond. See page 28.
IMPORTANT:
OutBack products are not designed for use in a positive-grounded system. If it is
necessary to build this system with OutBack products, contact OutBack Technical Support
at
+1.360.618.4363
before proceeding. Additionally, consult the online forum at
www.outbackpower.com/forum/
, where this subject has been discussed extensively.
Figure 21
Grounding
The GSLC’s grounding TBB, which is bonded to the
GSLC chassis, is located to the lower left of the
main inverter disconnect. It accepts conductors
from 1/0 to #14 AWG in size.
This TBB accepts ground connections from the
Radian inverter, FLEXmax charge controllers, the
OutBack GFDI, the Grounding Electrode Conductor
(GEC) or external earth ground, and other
equipment.
See the
Radian Series Inverter/Charger Installation
Manual
for recommendations on ground
conductor sizing. Once the size is determined,
see Table
3 for required torque values.
Ground TBB
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