Miller Electric 456 CV, 456 CC manual Installation, Specifications, Duty Cycle And Overheating

SECTION 3 – INSTALLATION

3-1. Specifications

				Maximum	Amperes Input
Input	Rated Welding	Amperage	Voltage		At Rated Load
				Open-	Output 60 Hz,
Power	Output	Range	Range	Circuit	Three-Phase
				Voltage DC
					400 V	KVA	KW
Three	450 A @ 38 Volts DC,
	100% Duty Cycle;	5 – 600	10 – 38	95	31	21.6	19.4
Phase	565 A @ 38 Volts DC,
	60% Duty Cycle

3-2. Duty Cycle And Overheating

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

If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding.

Y Exceeding duty cycle can damage unit and void war- ranty.

100% Duty Cycle At 450 Amperes 60% Duty Cycle At 565 Amperes

Continuous Welding	6 Minutes Welding	4 Minutes Resting
Overheating
	0	A/V
	15
		OR
	Minutes	Reduce Duty Cycle

duty1 4/95 – SA-181 560

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