MMD Equipment 400S-6B1 - Manual (Page 20)

3. Installation
3-6
3.3.4 GFCI (Ground-fault circuit interrupter) Receptacles
Using the generator in rain, snow or near water can lead to death from electric shock. Keep the
generator dry.
All of the 20 ampere 120 volt receptacles on the generator are protected by a GFCI
(Ground-fault circuit interrupter) for protection against the hazards of ground fault currents.
An example of ground-fault current is the current which would flow through a person who is
using an appliance with faulty insulation and, at the same time, is in contact with an
electrical ground such as a plumbing fixture, wet floor, or earth.
The ground-fault circuit interrupter will not protect against short circuits or overloads. The
circuit breaker in the control panel which supplies power to the circuit provides that
protection.
The ground-fault circuit interrupter can be identified by the TEST and RESET buttons. The
receptacles on the GFCI can be tested with the TEST and RESET buttons.
TEST BUTTON: To test, depress the “TEST” button. (power is turned off)
RESET BUTTON: To restore power, depress the “RESET” button.
Perform this test monthly or every 250 hours operation whichever comes first, in order to ensure
proper operation of the GFCI receptacle. If the generator is stored outdoors, unprotected from the
weather, test the GFCI receptacle before each use. Record your test on the GFCI test card provided
on the control panel.
A040270
Test button
Reset button