Using The Gfci; Figure 3-8, Ground Fault Circuit Interrupter - Sensata Magnum-Dimensions MagnaSine MS-G Series Owner's Manual

Operation
3.9

Using the GFCI

The GFCI outlet on the left side of the MS-G inverter (Figure 1-3, Item 16) provides auxiliary
power to 120VAC devices that require 20 amps or less. If you are using both GFCI outlets at once,
the amperage cannot exceed a total of 20 amps for both devices combined. Use only a 3-prong
grounded plug when using the GFCI outlet. Refer to Figure 3-8 for this section.
IMPORTANT: Because GFCI outlets can become damaged over time, they must be tested monthly
to ensure they are providing protection. To properly test the GFCI's operation, the inverter must
be providing ~120VAC to the GFCI outlet. If the inverter is "Searching", the Search mode feature
must be turned off to allow the inverter to provide ~120VAC.
To test the GFCI outlet:
1. Apply DC power to the inverter, and then turn the inverter on.
2. Plug a test light (small lamp or night light) in to the GFCI outlet and turn it on. If the light
comes on, proceed to Step 3. If it does not:
a) Ensure the GFCI's RESET button is not "tripped" (the RESET button is tripped if the button
is flush with the face of the TEST button). If fully pushing the RESET button does not cause
the light to come on, then,
b) Ensure the inverter is on and not in Search mode, or
c) Check the test light to ensure it is not faulty, or use a different test light.
3. Press the TEST button on the GFCI outlet. The RESET button immediately pops out and the
test light turns off. If this occurs, the GFCI accessory is operating correctly. However, if:
a) The RESET button does not pop out when the TEST button is pressed. The GFCI outlet is
not operating correctly.
b) The RESET button pops out, but the test light does not turn off.
This indicates you need to either:
• check the blue AC HOT 1 OUT wire and the white w/stripe AC NEUT OUT wire inside
the inverter to ensure they were not reversed during production, or
• check the HOT IN and NEUT IN wires to ensure they are not reversed from the external
AC power source.
To clear a tripped GFCI:
1. Some faults are self-clearing, try resetting the GFCI outlet by pressing the RESET button.
2. If the RESET button will not stay in, ensure the inverter is not in Search mode.
3. If the GFCI outlet continues to trip, the device is performing its intended protection function;
which means that a hazardous condition could exist. A qualifi ed electrician should be called
to evaluate the circuit.
Page 49

Figure 3-8, Ground Fault Circuit Interrupter

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