OM-245 849 Page 8
3-4. Duty Cycle And Overheating
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 voltage, or duty cycle before
welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
4 Minutes Welding 6 Minutes Resting
0
50
100
150
200
250
10
100
STICK/TIG
% DUTY CYCLE
OUTPUT AMPERES
50
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