Hobart Welding Products 500 manual Installation, Specifications, Duty Cycle And Overheating

SECTION 3 – INSTALLATION

3-1. Specifications

					Amperes Input at Rated Load
					Output, 50 or 60 Hz,
	Rated Welding	Amp Range	Max OCV			Three-Phase
Model	Output	DC	DC	IP Rating	220 V		380 V	440 V	KVA	KW
		A (Low)
	500 A @ 40 Volts	(45 – 250)			103		60	51	39.2	27
SRH-500	DC, 50 Or 60 Hz,		75	23M
		B (High)			5.5*		3.2*	2.7*	2.1*	0.8*
	35% Duty Cycle
		(60 – 500)
*While idling

3-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min-

utes that unit can weld at rated load without overheating.

Y Exceeding duty cycle can damage unit and void warranty.

35% Duty Cycle At 500 Amperes

3-1/2 Minutes Welding 6-1/2 Minutes Resting

Overheating

0	V
	15
	OR
Minutes	Reduce Duty Cycle	duty1 4/95 / 201 171

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