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OM-210 088 Page 10
2-2. 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 or gun and void
warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 – SA-802 090 / SA-802 091
A. 120 VAC Model
B. 230 VAC Model
3 Minutes Welding 7 Minutes Resting
30%dutycycle at 90 amps
3 Minutes Welding 7 Minutes Resting
30%dutycycle at 130 amps, 60 Hz –
20% duty cycle at 130 amps, 50 Hz