Outback FX-R Series Installation Manual

Commissioning
900-0166-01-01 Rev A 23
AC Wiring
WARNING: Shock Hazard
 The neutral and ground conductors should be mechanically bonded.
Ensure there is no more than one AC neutral-ground bond at any time.
 Local or national codes may require the bond to be made at the main panel only.
IMPORTANT:
 The installer is responsible for providing overcurrent protection. The AC input
and output may need to be protected with branch-rated circuit breakers of
maximum 60 Aac size to meet applicable code requirements.
 Applicable codes may prevent grid-interactive inverters from using an input circuit
breaker larger than 40 amps. Confirm local requirements before installation.
WARNING: Fire Hazard
Do not install these inverters using a load center that has multiwire branch circuits.
IMPORTANT:
This page contains OutBack’s recommendations for minimum safe cable sizes. Other
codes may supersede OutBack’s recommendations. Consult applicable codes for final
size requirements.
All system wiring must comply with national and local codes and regulations.
The FXR inverter’s AC terminal block has six positions for AC wires. The terminals will accept
conductor sizes up to #6 AWG (16 mm²) or 0.021 in².
Figure 12 AC Terminals
NEUTRAL
The two
N
EUTRAL
terminals
are electrically common.
If connecting to an external
neutral bus, only one
terminal needs to be used.
An external neutral bus is
often located in the main
electrical panel.
Use the other terminal if
connecting to a device that
has its own neutral wire,
such as a generator.
AC HOT OUT
The
AC
H
OT
O
UT
terminal connects to the
output load panel.
The terminal can carry
up to 60 amps using the
inverter’s transfer relay.
Size the output wiring
and protective devices
according to the size o
f
the loads and the
applicable code.
AC HOT IN
The
AC
H
OT
I
N
terminal brings current from the AC source. It powers both battery
charger and loads. Use the source size to determine actual current draw. Size the
input wiring and protective devices accordingly. To support the inverter’s maximum
current draw of 60 Aac, use conductors of #6 AWG (16 mm²) or 0.021 in² size.