General Information
36833 C MGG100M Operating Manual 19
FUSE BLOCK
The fuse block is located behind the front panel, in the back lower-left corner of the controller box. The 10A fuse in
the F2 slot is the control panel fuse.
Figure 12 - Panel Fuse Block
MAIN LINE CIRCUIT BREAKER
The main line circuit breaker (MLCB) is below the H-100 control panel (see Figure 6). The MLCB controls power
between the generator and connection lugs.
The main circuit breaker only controls power to the connection lugs. The customer
convenience receptacles are powered even if the main circuit breaker is switched OFF (O).
To disconnect power to the convenience receptacles, use the individual circuit breakers
located near each receptacle.
When the MLCB is OFF (O), power does not flow between the generator and connection lugs. When connections
to the lugs are established and the generator is started and allowed to reach normal operating temperature, the
MLCB can be switched ON (I).
Automatic Shut-Off
If any of the following occurs during unit operation, the MLCB shuts OFF (O), disconnecting power to the connection
lugs.
• Overload of generator circuits to connection lugs
• Door is open on the customer disconnect switch box
• EMERGENCY STOP switch is active
Before switching the MLCB to ON (I), do the following.
• Correct the problems that caused it to shut off
• Verify the connection lugs are not energized by another source
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