Gfci Operation - Sensata dimensions 12NP18 Owner's Manual

GFCI Operation

A GFCI measures the amount of AC current into the GFCI line side "hot" and "neutral" terminals. Both terminals
should measure the same amount of current under normal conditions. Any difference in current is considered the
leakage current. If the leakage current is greater than 5mA, the GFCI will trip. A tripped GFCI suggests that there
has been a breakdown in the electrical insulation of a connected device. This can result in a safety hazard for the
user. The breakdown could have been caused by broken wire insulation with the live wire contacting the ground
conductor, water in contact with a live conductor, or any other inadvertent electrical path to ground.
The GFCI has a status LED on it. When installed with a Leviton GFNT2 GFCI, the LED will operate as follows:
LED Color & State
Green — Constant On
Red — Constant On
Red — Blinking
The GFCI installed in this inverter is compliant with the latest requirements for GFCI's per UL 943. This includes
automatic self-testing and line-load reversal.
NOTE: For GFCI protected hardwire output ("A" option), replacement GFCIs must be wired directly to the GFCI
"Load" terminals. Verify the connections are installed to the unused "Load" terminals. Turn off AC and DC power
sources before replacing the GFCI. Refer to Table 11 for replacement GFCI models.
Self-Testing
The GFCI will periodically test the ground fault detection circuit in the background. If the test determines there
is a problem with the detection circuit, the GFCI will trip and/or notify the user visually with the status LED. The
GFCI will perform a self-test when AC power is first applied to it.
Line-Load Reversal
If the line and load terminals are wired backwards, the GFCI will not reset and power will not be available until the
wiring has been corrected.
NOTE: Depending on the GFCI model that is used, the line and load terminals on the rear may not be in the same
position. The user must verify the GFCI markings to ensure proper connection.
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GFCI Status LED
Condition
GFCI is powered from the line side and
operating correctly
Fault found during normal operation
Fault found during self-test
Table 6 GFCI Operation
12NP Manual
Action Required
None
Press "Test" to trip the GFCI. If it fails to
reset after pressing "Reset," the GFCI will
need to be replaced.
Press "Test" to trip the GFCI. If it fails to
reset after pressing "Reset," the GFCI will
need to be replaced.