Operator`s manual

28
VOLTAGE SELECTOR SWITCH
The voltage selector switch is located on a panel attached to the generator behind the door located next to the fuel
tank filler. The selector switch is a three position switch that mechanically changes the connections between the
generator output leads and the connection lugs on the main control panel. Voltage ranges are selected by rotating
the handle on the switch to the desired voltage.
NEVER CHANGE THE VOLTAGE SELECTOR SWITCH WHILE THE ENGINE IS RUN-
NING! This will cause severe arcing and damage to the switch and generator windings.
The voltage selector switch is equipped with a locking mechanism. Once the proper voltage has been selected, push
the red latch on the inside of the phase switch handle up and insert a padlock through the handle. By locking the
handle in place you will prevent unauthorized personnel from changing the switch settings.
Note: When the voltage selector switch is in position for 480/277V 3Ø, voltage at the two GFCI duplex convenience
outlets is 139 Volts and the voltage at the two twist-lock outlets is 240/139 Volts. When the voltage selector switch is
in position for 208/120V 3Ø, voltage at the two twist-lock outlets and the two GFCI outlets is 208/120 Volts.
Note: Super Start Option: When the voltage selector switch is in position for 480/277V 3Ø, voltage at the two GFCI
duplex convenience outlets is 139 Volts. When the voltage selector switch is in position for 208/120V 3Ø, voltage at
the three twist-lock outlets and the two GFCI outlets is 208/120 volts.
T1
L1
T4
T7
T10
N
T2
L2
T8
T5
T9
T6
T3
L3
T11
T12
L-N
L-L
L1 - L2 = 480V L1 - N = 277V
L2 - L3 = 480V L2 - N = 277V
L3 - L1 = 480V L3 - N = 277V
N =
T4
T7
T10
T1
L1
L2
T8
T2
T9
T3
T6
T11
L3
T5
T12
N
L-N
L-L
L1 - L2 = 208V L1 - N = 120V
L2 - L3 = 208V L2 - N = 120V
L3 - L1 = 208V L3 - N = 120V
N =
T10
T7
T6
T8
T12
T2
T11
T3
T4 T1
T5
T9
L3
N
L1
120V120V
240V
L1 - L3 = 240V L2 - N = -------
L1 - N = 120V L3 - N = 120V
208
120
240
120
480
277
208
120
480
277
208
120
240
120
480/277V
3-PHASE
208/120V
3-PHASE
240/120V
1-PHASE