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2-5-1 Neutral Grounding (GFCI's):
2-5-1-1 120V models: The neutral conductor of the AC output circuit of the Inverter is
automatically connected to the safety ground during inverter operation. According
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 GFCI
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.
2-5-1-2
230V models: There is no connection made inside the Inverter from either the
line or neutral conductor to the safety ground.
Ground Fault Circuit Interrupters (GFCI'S):
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. Our company has tested the following GFCI-protected 20A
receptacles and found that they functioned properly when connected to the output of the
inverter.
2-6. Marking DC Wiring Connections:
Follow this procedure to connect the battery cables to the DC input terminals on the Inverter.
Your cables should be as short as possible (ideally, less than 10 feet / 3 meters) and large
enough to handle the required Current in accordance with the electrical codes or regulations
applicable to your installation.
Cables that are not an adequate gauge (too narrow) or are too long will cause decreased
inverter performance such as poor surge capability and frequent low input voltage warnings
and shutdowns.
These low input voltage warnings are due to DC voltage drop across the cables from the
inverter to the batteries.
The longer and narrower these cables, the greater the voltage drop.
WARNING!
Do not operate the power inverter without connecting it to Ground.
Electrical shock hazard may result.
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