2-2. Duty Cycle And Overheating
A. 115 VAC Model
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| 135 |
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| 100 |
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Amperes | 80 |
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60 |
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Output | 40 |
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20 |
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| 10 |
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| 1 | 2 | 4 | 6 | 8 10 | 20 | 40 | 60 | 80 100 | |||||||||||||
Duty Cycle %
20% duty cycle at 90 amps
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.
YExceeding duty cycle can damage unit or gun and void warranty.
2 Minutes Welding | 8 Minutes Resting |
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B. 230 VAC Model
200
Output Amperes
130
100
80
60
40
20
10
10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 100 |
Duty Cycle %
30% duty cycle at 130 amps, 60 Hz
20% duty cycle at 130 amps, 50 Hz
3 Minutes Welding |
| 7 Minutes Resting |
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Overheating |
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| 0 |
| A or V |
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| 15 | OR |
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| Minutes |
| Reduce Duty Cycle |
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duty1 4/95 − 196 617 / 196 618
