Wire connections – Outback Power Systems FX Series Installation Manual User Manual
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11
AC
Follow these steps to wire the FX to your system:
1. Shut all AC breakers off or remove any fuses before connecting any wiring.
2. Shut off all DC breakers, including the PV breakers.
3. With all power off , run lengths of 6 AWG (13.3 mm
2
)
wire between the AC Wiring Compartment
Board AC out terminals and suffi
cient over current protection via an AC circuit breaker whose
ampacity matches or exceeds the maximum AC input current of the FX model used in the system
(see FX product specifi cations). The breaker should be installed inside of a metal chassis such as
OutBack’s FLEXware series or an existing panel.
4. With the over current protection connected, run lengths of 6 AWG (13.3 mm
2
) wire between the
AC Wiring Compartment Board AC IN terminals and the AC input breaker. The breaker should be
installed inside of a metal chassis such as OutBack’s FLEXware series or an existing panel. The AC
input hot conductor must be supplied through an AC branch-rated circuit breaker whose ampacity
matches or exceeds the maximum AC input current of the FX model used in the system (see FX
product specifi cations)
While 60 amp over-current protection reduces the risk of fi re, for further reduction,
do not connect a single FX to both hot legs of a 120-240 VAC AC load center having
multi-wire (common neutral) branch circuits connected. Use either two FX Series
Inverter/Chargers wired in a series confi guration or an FW-X240 Auto Transformer.
NOTE:
Connect Mobile FX equipment to an AC circuit with 30 amp maximum branch-circuit
over-current protection (as per NEC, ANSI/NFPA 70).
M
WIRE CONNECTIONS
NOTE:
A system’s individual voltage requirements (120 single phase, 120/240 split phase, or 3-phase) as
well as how each FX is to function all determine how the FXs are wired. Each FX must be wired to the
logical leg or phase of the system. Each FX must be programmed or “stacked” according to this phase.
Please see the FX and VFX Series Inverter/Charger Programming Manual before connecting any wires to
or from the FX.