Samlex America SA-2000K - Manual (Page 17)

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3-6. AC Safety Grounding
The AC output ground wire should go to the grounding point for your loads
(for example, a distribution panel ground bus).
3-6-1. Neutral Grounding (GFCI’S):
3-6-1-1. 120V models: The neutral conductor of the AC output circuit
of the Inverter is automatically connected to the safety ground during
inverter operation. This conforms to National Electrical Code
requirements that separately derived from AC sources (such as
inverters and generators) which have their neutral conductors tied to
ground in the same way as the neutral conductors from the utility tied
to ground at the AC breaker panel. For models configured with a
transfer relay, while AC utility power is present and the Inverter is in
bypass mode, this connection (the neutral of the Inverter’s AC output
to input safety ground) is not present so that the utility neutral is only
connected to ground at your breaker panel, as required.
Ground Fault Circuit Interrupters (GFCI)
Installations in Recreational Vehicles (for North American approvals) will
require GFCI protection of all branch circuit connected to the AC output of
the hardwire terminal equipped with Inverter. In addition, electrical codes
require GFCI protection of certain receptacles in residential installations.
While the pure sine wave output of the Inverter is equivalent to the waveform
provided by utilities, compliance with UL standards requires us to test and
recommend specific GFCI.
Samlex America Inc. has tested the following GFCI – protected 20A
receptacles and found that they functioned properly when connected to the
output of the Inverter.
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