For air compressors, the amperage required all depends on what your
particular unit demands, which should be listed right on the motor. I have a
5hp Campbell-Hausfeld wheeled unit which requires 15 amps (for start-up) when
using 110 volt service, or 7 amps when wired to 220. I had to install a
separate 30 amp circuit breaker to my breaker box wired to a separate outlet
in my garage to handle it, since I'm using 110. Many welders today run on
110, depending again on what type you buy for what you're using it for. For
welding body panels and such for your car, a 110v unit should work fine. A
little research here for your particular needs will save a lot headaches down
the road. You want to make sure that you're not overloading the circuit that
you're using (using too many amps) for the design of the circuit. This takes
into account the size of your wiring from the breaker to the outlet, and the
circuit breaker size (your protection device) and also the total amp service
coming into your house or building. Just some basics, but it will keep you
from burning your place down!
If you have any doubts about doing it yourself, you should at least consult
an electrician or someone who knows how to do it.
HTH
Greg Donegan
72 TR6 CC82492U
Hebron, KY
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