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11
Planning Preparations
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GFCI Requirements
A GFCI (ground fault circuit interrupter) is a device that de-
energizes a circuit when a current to ground exceeds a specified
value that is less than that required to open the circuit breaker.
GFCIs are intended to protect people from electric shocks and are
usually required in wet or damp locations.
energizes a circuit when a current to ground exceeds a specified
value that is less than that required to open the circuit breaker.
GFCIs are intended to protect people from electric shocks and are
usually required in wet or damp locations.
Installation in recreational vehicles may require GFCI protection of
certain branch circuits. Consult all applicable codes.
certain branch circuits. Consult all applicable codes.
Disconnect Devices
Each system requires a method of disconnecting the AC circuits. If
the overcurrent protection device is a circuit breaker, it will also
serve as the disconnect. If fuses are used, separate AC disconnect
switches will be needed between the source and the fuses.
the overcurrent protection device is a circuit breaker, it will also
serve as the disconnect. If fuses are used, separate AC disconnect
switches will be needed between the source and the fuses.
Distribution Panels
Some systems incorporate distribution panels both ahead of the
inverter/charger (the AC source panel) and between the inverter/
charger and the loads (the AC load panel). The AC source panel
includes a main circuit breaker, which serves as overcurrent
protection for the panel. Additional circuit breakers serve individual
circuits, one of which serves the inverter/charger.
inverter/charger (the AC source panel) and between the inverter/
charger and the loads (the AC load panel). The AC source panel
includes a main circuit breaker, which serves as overcurrent
protection for the panel. Additional circuit breakers serve individual
circuits, one of which serves the inverter/charger.
AC Wiring
Definition
AC wiring includes input wiring (all the wires and
connectors between the AC source and the inverter/charger input)
and output wiring (all the wires between the inverter/charger and the
AC load panels, circuit breakers, and loads).
and output wiring (all the wires between the inverter/charger and the
AC load panels, circuit breakers, and loads).
Type
The type of wiring required varies according to the electrical
codes or regulations applicable to your installation. For RV
applications, this may be solid wire in multi-conductor cables, but
stranded wire is required if single conductors are used. All wiring
must be rated 75 °C or higher. In Australia, all wiring must be rated
90 °C or higher.
applications, this may be solid wire in multi-conductor cables, but
stranded wire is required if single conductors are used. All wiring
must be rated 75 °C or higher. In Australia, all wiring must be rated
90 °C or higher.
Size of AC Input Wiring
Wire size must be coordinated with the
overcurrent protection provided ahead of the wire involved, in
accordance with the electrical codes or regulations applicable to
your installation. Therefore, the wiring used between the AC input
circuit breaker and the inverter/charger input must be sized to match
the input breaker rating.
accordance with the electrical codes or regulations applicable to
your installation. Therefore, the wiring used between the AC input
circuit breaker and the inverter/charger input must be sized to match
the input breaker rating.
Freedom SW 3K2K 230V InvChg Install Guide.book Page 11 Friday, June 20, 2014 9:11 AM