Miller Electric H-10 - Manual (Page 14)

OM-219 316 Page 10
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
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
Y Exceeding duty cycle can
damage unit or gun and void
warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 − 217 623-A
20% duty cycle at 90 amps
1 4 10 20 40 60 100 2 6 80 8
10
20
40
60
80
100
200
140
Duty Cycle %
Output Amperes
2 Minutes Welding 8 Minutes Resting