Welder Red Seal · Question
A welding machine is rated for 300A at a 60% duty cycle. What does this mean?
Duty cycle is a rating based on a 10-minute period. A 60% duty cycle means the machine can operate safely at its rated amperage (300A) for 6 minutes, and then m
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Question: A welding machine is rated for 300A at a 60% duty cycle. What does this mean?
Answer options:
- It can output a maximum of 60% of 300A. ✅ It can weld continuously for 6 minutes at 300A within a 10-minute period.
- It can weld for 60 minutes at 300A before needing to cool down.
- It can only be used for 6 hours in a 10-hour shift.
Correct answer: It can weld continuously for 6 minutes at 300A within a 10-minute period.
Explanation: Duty cycle is a rating based on a 10-minute period. A 60% duty cycle means the machine can operate safely at its rated amperage (300A) for 6 minutes, and then must cool for the remaining 4 minutes.
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