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OM-2233 Page 14
4-3. Duty Cycle And Overheating
189 770-A
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, output stops, and
cooling fan runs. Wait fifteen min-
utes for unit to cool. Reduce amper-
age or duty cycle before welding.
Y Exceeding duty cycle can
damage unit and void
warranty.
150 A @ 60% Duty Cycle For Stick Process (Other Voltages)
6 Minutes Welding 4 Minutes Resting
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
175 A @ 60% Duty Cycle For TIG Process (Other Voltages)
90 A @ 100% Duty Cycle For 115 Volt Single-Phase Stick Process
125 A @ 100% Duty Cycle For 115 Volt Single-Phase TIG Process