Standby Power Connections - Lincoln Electric DUAL VANTAGE 800 Operator's Manual

DUAL VANTAGE ® 800

STANDBY POWER CONNECTIONS

®
The DUAL VANTAGE 800 is suitable for temporary, standby or
emergency power using the engine manufacturer's recommended
maintenance schedule.
®
The DUAL VANTAGE 800 can be permanently installed as a
standby power unit for 240 volt-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 dis-
connect and service over current protection.
FIGURE A.4 Connection of the DUAL VANTAGE® 800 to Premises Wiring
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 DUAL VANTAGE 800 by installing a 50 amp, 240 VAC dou-
ble 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
®
DUAL VANTAGE 800 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
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DUAL VANTAGE 800 case front.
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