5A-4
5A G3.3A/G4.6A/GS4.6A/GS5.7A 50 HZ PORTABLE GENERATORS
T
E
S
T
g
a
1
a
2
1020SD80
1020SD89
a
1
a
2
g
5.7 Main Circuit Breaker
The circuit breaker protects the generator from severe
overloads or short circuits. If the circuit breaker opens,
turn the engine off immediately and determine the cause
before restarting. Check the appliances and tools attached
to the generator for defects and make sure their power
requirements do not exceed the power rating of the
generator or the current limit of the receptacles.
When the circuit breaker opens, the breaker lever will
snap down. To reset the circuit breaker, lift lever up. See
Figures 5-5 and 5-6.
5.8 Earth-leakage Circuit Breaker
Generator models G3.3AE, G4.6AE, GS4.6AE, and
GS5.7AE are equipped with an earth-leakage circuit
breaker. The circuit breaker is current-operated and
shuts off the power to the receptacles when a ground fault
of 30 milli-Amps or greater occurs in the generator or to
a piece of equipment attached to the generator. The
circuit breaker is located on the control panel and should
be tested for proper operation every time the generator
is used.
To test the earth-leakage circuit breaker:
Start the generator. Place main circuit breaker in closed
position. Push the TEST button (g) on the circuit breaker.
The circuit breaker lever will lower to the open position
(a
2
). Power is now off at both receptacles. If the lever
does not lower, the circuit breaker is not working. Do not
use the generator until the problem can be corrected. To
restore power to the receptacles, raise the circuit breaker
lever to the closed position (a
1
).
If the circuit breaker lever lowers to the open position
during operation, stop the generator and check it and
equipment for defects. Repair all defects before operat-
ing generator.
Figure 5-4a. ELCB for G3.3AE, G4.6AE, and
GS4.6AE Models
Figure 5-4b. ELCB for GS5.7AE Models
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