Lincoln Electric IM467-B manual Table A.1 Recommended Input Wire and Fuse Sizes

A-5 A-5

INSTALLATION

The Square Wave TIG 355 should be permanently wired into the power system. Plugs or connectors are not recommended.

TABLE A.1

RECOMMENDED INPUT WIRE AND FUSE SIZES

For all Stick, DC TIG, and Balanced AC TIG Welding

Based on the 1990 U.S. National Electrical Code(2)								40% Duty Cycle
			Input Ampere		Type 75°C
	Input		Rating on		Wire in Conduit	Grounding Wire		Fuse Size
	Volt/Freq.		Nameplate		AWG Copper Cond.	AWG Copper Cond.		(Super Lag)
	208/60	110		4		6	150
	230/60	100		6		6	125
	460/60	50		8		10	60
	200/50	137		4		6	150
	220/50	124		4		6	125
	440/50	65		8		10	60
					TABLE A.2
			RECOMMENDED INPUT WIRE AND FUSE SIZES
			For Unbalanced AC TIG Welding Above 230 AMPS
Based on the 1990 U.S. National Electrical Code(2)								60% Duty Cycle
			Input Amperes
			at 300 Amp		Type 75°C
	Input		Unbalanced		Wire in Conduit	Grounding Wire		Fuse Size
	Volt/Freq.		AC Output		AWG Copper Cond.	AWG Copper Cond.		(Super Lag)
	208/60		148		2	6		200
	230/60		134		2	6		175
	460/60		67		6	8		80
	200/50		154		1	6		200
	220/50		140		2	6		200
	440/50		70		6	8		90

(2)Article 630 of the 1990 U.S. National Electrical Code allows the rated ampacity of the supply conductors to be determined by multiplying the nameplate rating by the appropriate multiplier, depending on the duty cycle of the welder.

SQUARE WAVE TIG 355