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CAUTION
The two120V GFCI receptacles should not be used in the 480/277 and 600/348 voltage
settings and the three 240V twist-lock receptacles should not be used in the 600/348 voltage
setting as the voltage will be higher and equipment damage could result.
EMERGENCY STOP SWITCH
The generator is equipped with one “EMERGENCY STOP” switch,
located on the rear corner of the unit next to the control panel door.
The switch is clearly labeled with “EMERGENCY STOP” and is red.
The switch can be accessed and activated with all doors closed and
locked.
Activate the “EMERGENCY STOP” switch by pushing the red button
in until it locks down. This will trip the main circuit breaker which will
open the contact disconnecting the load to the connection lugs. This
will also open the fuel circuit, shutting down the engine. The “Emer-
gency Stop” fault will be displayed on the LCD.
The switch will remain closed until it is pulled out.
Use the “EMERGENCY STOP” switch only when the generator must be shut down imme-
diately. For any other shut down, refer to
.
MAIN CIRCUIT BREAKER
The main circuit breaker is located on the main control panel. When the breaker is in the
“OFF/O” position, power is interrupted between the customer connection lugs and the
generator. Once the connections have been made to the connection lugs and the
generator has been started and allowed to reach normal operating temperature, the
breaker may be switched to the “ON/I” position.
The main circuit breaker will be tripped, disconnecting power to the connection lugs if
any of the following items occur while the unit is running:
1. Overload of the generator circuits to the connection lugs (208/120V only).
2. The door covering the customer connection lugs is opened.
3. If the “EMERGENCY STOP” switch is activated.
Make sure any problems that cause the main circuit breaker to trip are corrected before
returning the switch to the “ON/I” position.
WARNING
The main circuit breaker interrupts power to the customer connection lugs only! The
customer convenience receptacles have power even if the main circuit breaker is in
the “OFF/O” position. To disconnect power to the convenience receptacle, use the
individual circuit breakers located near each receptacle.
GENERATOR BOX CIRCUIT BREAKERS
These circuit breakers are located on the generator box near the phase switches. The breakers protect the extra taps
(T13 and T14) that go from the generator box to the control box. If one of these breakers were to open, the generator
would not output 600V when 600V is selected. This is because the voltage regulator wouldn’t be getting any power.
However, all the other voltage settings would continue to work.
EM
ERGENCY
S T O P
ON I
OFF O
Summary of Contents for MMG75CAN6
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