Grounding, Table 3, Ground conductor size and torque requirements – Outback Power Systems GFX Series Inverter/Charger Installation Manual User Manual
Page 20: Figure 6, Dc ground lug, Figure 7, Ac ground terminals, Installation
Installation
18
900-0113-01-00 Rev A
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. 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. If the OutBack GFDI is present, it can provide the bond.
IMPORTANT:
OutBack products are not designed for use in a positive-grounded system. If it is necessary
to build a positive-ground system with OutBack products, contact OutBack Technical
Support at 360.618.4363 before proceeding. Additionally, consult the online forum at
, where this subject has been discussed extensively.
Table 3
Ground Conductor Size and Torque Requirements
Terminal Location
Minimum Conductor Size Torque Requirements
Center AC Terminals
#8 AWG or 0.016 in2 (10 mm2)
25 in-lbs (2.8 Nm)
DC Box Lug
#6 AWG or 0.025 in2 (16 mm2)
45 in-lbs (5.1 Nm)
Figure 6
DC Ground Lug
The inverter’s DC ground is a box lug located next to
the negative DC battery terminal. Local codes or
regulations may require the DC ground to be run
separately from the AC ground. Also, if present, it will
be necessary to remove the DC Cover before making
the ground connection.
The two Chassis Ground/PE terminals are electrically
common. Only one terminal can be used if
connecting to an external ground bus. The other
terminal may be used if connecting to a device with
its own ground wire, such as a generator.
Figure 7
AC Ground Terminals