3-6-1-2. 230V models：There is no connection made inverter
interior between either the line or neutral conductor
to the safety ground.
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 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.
Cotek 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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