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Installation
975-0171-01-01
9
AC Disconnect and Over-Current Protection Device
To meet CSA, UL, and electrical code requirements, and to protect system wiring,
the AC inputs and outputs of the inverter/charger must be provided with over-
current protection on both the AC input and output. This protection may be a
circuit breaker or a fuse with a disconnect device (for simplicity the following
refers to breakers). Refer to your applicable installation codes and the following
requirements:
AC Input Protection
The breakers protecting the AC input of the RS3000 must be approved for use on
120 VAC branch circuits, and must be located in each Line. The breakers must be
rated as shown below, so that the 50A maximum current that the inverter/charger
and its transfer relay can handle is not exceeded:
•
Split-phase input: No more than 50 amps max in each line.
•
Dual input: The neutral current in a dual-input system is the sum of the two
line currents, and must be limited to 50A max to protect the transfer relay.
Each breaker must not exceed 50A, and the total (sum) of the ratings of the
two breakers must not exceed 50A. For example, if Line 1 has a 30A breaker,
the Line 2 breaker cannot exceed 20A. The sum of the breakers can exceed
50A if both are fed from a common feeder line protected at no more than 50A
(for example a 50A breaker feeding a pair of 30A breakers).
AC Output Protection
The breaker between the RS3000 AC output and the AC loads must be rated to
protect the AC output wire size used. If the AC output wiring is based on the full
50A pass-through rating, then a 50A output breaker is acceptable. If the AC
output wiring is smaller, then the breaker size will have to be smaller as well, in
accordance with applicable electrical installation codes.
GFCI Requirements
A GFCI (ground fault circuit interrupter) is a device that deenergizes 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 requires GFCI protection of certain branch
circuits. Consult all applicable codes.
WARNING: Shock Hazard
Do not connect 240 VAC loads to the RS3000 outputs. Doing so may result in
120 VAC on exposed parts of the appliance.
Содержание RS3000
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