Lincoln Electric IM707 Commander 500 - Manual (Page 15)

A-7 INSTALLATION
COMMANDER 500 CUMMINS
A-7
2. Take necessary steps to assure load is limited to the
capacity of the Commander 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 overheat-
ing of the COMMANDER 500 CUMMINS engine.
3. Install a 50 amp 120/240 VAC plug (NEMA Type 14-
50) to the double-pole circuit breaker using No. 6, 4
conductor cable of the desired length. (The 50 amp,
120/240 VAC plug is available in the optional K802R
plug kit.)
4. Plug this cable into the 50 Amp 120/240 Volt recep-
tacle on the COMMANDER 500 CUMMINS case
front.
Figure A.2 Connection of the COMMANDER 500 CUMMINS to Premises Wiring
240 Volt
60 Hz.
3-Wire
Service
POWER
COMPANY
METER
240 VOLT
120 VOLT
120 VOLT
LOAD
N
NEUTRAL
BUS
GROUND
PREMISES
DISCONNECT AND
SERVICE
OVERCURRENT
PROTECTION
GND
N
NOTE: No. 6 COPPER CONDUCTOR CABLE SEE
NATIONAL ELECTRICAL CODE FOR ALTERNATE WIRE
SIZE RECOMMENDATIONS.
240 VOLT
GROUNDED CONDUCTOR
50AMP
240 VOLT
DOUBLE
POLE
CIRCUIT
BREAKER
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