Frequently Asked Questions...
on average how many watts does a 230 amp ac/dc arc welder draw?
wanting to know how many watts my 230 amp ac/dc welder draws to know if i can use it with my generator which is a 4000 watt starting 2800 running
Answer:
The arc is about 70 volts, so 70 times 230 = over 16 KW + the inefficiencies of the welder.
The answer is not necessarily NO; you can run at some reduced current.
Up to what value, you have to try, monitor the sound changes, the temperature. As a rule of thumb keep any temperature below 100ºC. 85º is the usual temperature limit.
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