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Electric Welder Circuit Sizes

How to Plan the Electrical Circuit Wiring for Your Welder


Planning a Circuit for an Electric Welder

Question: I want to run a small inverter welder 120 volt in my home,

Here are the specifications for my welder:

  1. Would 12/2 Romex wire about 25′ suffice, or do I need to use 10/2 Romex?
  2. I have the old screw in fuse box, maybe I can find a line with a thirty amp fuse in it.
  3. Would a 20 amp fuse work?

I understand about other loads which may be connected to it.
Also, about how many amps can those old cloth covered oily wires in old houses running out of the fuse box usually carry ?
Save me having to measure the gauge, the wiring in this house is a nightmare, someday I will rewire it.
Thanks.

This electrical question came from: Mike, a Homeowner from Phila. PA.

Dave’s Reply:
Thanks for your electrical question Mike.

Planning an Electrical Circuit for Your Welder

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Electric Welder Circuit Sizes

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