Miller Electric XMT 400 manual Specifications, Duty Cycle And Overheating

SECTION 4 − INSTALLATION

4-1. Specifications

			Maximum		Amperes Input
Rated Welding	Voltage	Amperage			at Rated Load
			Open-Circuit	IP Rating	Output 50/60 Hz
Output	Range	Range
			Voltage DC
					400 V	KVA	KW
300 A @					17.0	12.4	11.5
32 Volts DC,	10 − 35	5 − 400	90	23
					(0.15*)	(0.09*)	(0.04*)
60% Duty Cycle
*While idling

4-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.

If unit overheats, output stops, a Help message is displayed (see Section 6-3), and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle be- fore welding.

NOTICE − Exceeding duty cycle can damage unit and void warranty.

60% Duty Cycle

6 Minutes Welding 4 Minutes Resting

Overheating

0	A
	15
	OR
Minutes	Reduce Duty Cycle

Ref. SA-178 651

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