Samlex America SA-1500 - Manual (Page 15)

13
3-6. AC Safety Grounding
During the AC wiring installation, AC input and output ground wires are
connected to the inverter. The AC input ground wire must connect to the
incoming ground from your AC utility source.
The AC output ground wire should go to the grounding point for your loads
(for example, a distribution panel ground bus).
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 wave form
provided by utilities, compliance with UL standards requires us to test and
recommend specific GFCI.
Samlex has tested the following GFCI
－ protected 20A receptacles and
found that they functioned properly when connected to the output of the
Inverter.
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 AC sources (such
as inverter and generators) have their neutral conductors tied
to ground in the same way that the neutral conductor from the
utility is tied to ground at the AC breaker panel. For models
configured with a transfer relay, while AC utility power is
presenting and the Inverter is in bypass mode, this
connection (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.