Miller Electric MW 140 Plus, H-10 Duty Cycle And Overheating, Output Duty Cycle %, Warranty

4-2. Duty Cycle And Overheating
										Duty Cycle is percentage of 10
										minutes that unit can weld at rated
										load without overheating.
										If unit overheats, thermostat(s)
										opens, output stops, and cooling
	200									fan runs. Wait fifteen minutes for
										unit to cool. Reduce amperage or
	140									duty cycle before welding.
										Y Exceeding duty cycle can
Amperes	100
										damage unit or gun and void
	80
										warranty.
	60
Output	40
	20
	10	2	4	6	8	10		40	60	80 100
	1						20
				Duty Cycle %
			20% duty cycle at 90 amps
		2 Minutes Welding					8 Minutes Resting
Overheating
						0				A or V
							15			OR
					Minutes				Reduce Duty Cycle
										duty1 4/95 − 217 623-A

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