Lincoln Electric SVM153-A service manual Company

A-8 A-8

INSTALLATION

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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 cus- tomer’s premises disconnect and service over current protection.

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 amperes. Loading above the rated output will reduce output voltage below the allow-

able -10% of rated voltage, which may damage appliances or other motor-driven equipment and may result in overheating of the Commander 500 engine.

3.Install a 50 amp 120/240 VAC plug (NEMA Type 14-50) to the double-pole circuit breaker using No. 6, four-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 case front.

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FIGURE A.2 – CONNECTION OF THE COMMANDER 500 TO PREMISES WIRING

		240 VOLT
						GROUNDED CONDUCTOR
240 Volt	POWER
				120 VOLT
60 Hz.	COMPANY
3-Wire			120 VOLT
Service
	METER
							NEUTRAL
							BUS		N
	DOUBLE POLE DOUBLE THROW									LOAD
	SWITCH RATING TO BE THE SAME
	AS OR GREATER THAN PREMISES
	SERVICE OVERCURRENT
	PROTECTION.
								PREMISES
								DISCONNECT AND
								SERVICE
						GROUND
					50AMP			OVERCURRENT
								PROTECTION
					240 VOLT
					DOUBLE
50 AMP, 120/240					POLE
					CIRCUIT
VOLT PLUG			240 VOLT
					BREAKER
NEMA TYPE 14-50

GND

N

50 AMP, 120/240 VOLT

RECEPTACLENOTE: No. 6 COPPER CONDUCTOR CABLE. SEE NATIONAL ELECTRICAL CODE FOR ALTERNATE WIRE

SIZE RECOMMENDATIONS.

COMMANDER 500