Duty Cycle And Overheating - Miller Electric DVI-2 R Owner's Manual

4-2. Duty Cycle And Overheating

A. 115 VAC
B. 230 VAC
Overheating
OM-232 386 Page 12
.
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20% duty cycle at 90 amps
2 Minutes Welding
40% duty cycle at 150 amps
4 Minutes Welding
0
Minutes
8 Minutes Resting
6 Minutes Resting
15
OR
Reduce Duty Cycle
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
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit or gun and void
warranty.
A or V
duty1 4/95 − 124 655 / 220 896-A