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VANTAGE
441X/LE500X
®
STANDBY POWER CONNECTIONS
The Vantage
441X/LE500X is suitable for temporary, standby or
®
emergency power using the engine manufacturer's recommended
maintenance schedule.
The Vantage
441X/LE500X can be permanently installed as a
®
standby power unit for 240 VAC, 3 wire, 50 amp service.
Connections must be made by a licensed electrician who can
determine how the 120/240 VAC power can be adapted to the
particular installation and comply with all applicable electrical
codes. Refer to the connection diagram shown in Figure A.4.
1. Install the double-pole, double-throw switch between the
power company meter and the premises disconnect. Switch
rating must be the same or greater than the customer's
premises disconnect and service over current protection.
FIGURE A.4 Connection of the Vantage
POWER
240 Volt
60 Hz.
COMPANY
3-Wire
Service
METER
DOUBLE POLE DOUBLE THROW
SWITCH RATING TO BE THE SAME
AS OR GREATER THAN PREMISES
SERVICE OVERCURRENT
PROTECTION.
50 AMP, 120/240
VOLT PLUG
NEMA TYPE 14-50
50 AMP, 120/240 VOLT
RECEPTACLE
240 VOLT
120 VOLT
120 VOLT
240 VOLT
DOUBLE
CIRCUIT
240 VOLT
BREAKER
GND
A-7
2. Take necessary steps to assure load is limited to the capacity
of the Vantage
®
441X/LE500X by installing a 50 amp, 240 VAC
double pole circuit breaker. Maximum rated load for each leg
of the 240 VAC auxiliary is 50 amps. Loading above the rated
output will reduce output voltage below the allowable -10% of
rated voltage which may damage appliances or other motor-
driven equipment and may result in overheating of the engine
and /or alternate windings.
3. Install a 50 amp 120/240 VAC plug (NEMA Type 14-50P) to the
double-pole circuit breaker using No. 6, 4 conductor cable of
the desired length.
4. Plug this cable into the 50 Amp 120/240 Volt receptacle on the
Vantage
441X/LE500X case front.
®
441X/LE500X to Premises Wiring
®
GROUNDED CONDUCTOR
50AMP
POLE
N
NOTE: No. 6 COPPER CONDUCTOR CABLE SEE
NATIONAL ELECTRICAL CODE FOR ALTERNATE WIRE
INSTALLATION
NEUTRAL
BUS
N
PREMISES
DISCONNECT AND
SERVICE
GROUND
OVERCURRENT
PROTECTION
SIZE RECOMMENDATIONS.
LOAD
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