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    justincarnecchia's Avatar
    justincarnecchia Posts: 1, Reputation: 1
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    #1

    Mar 5, 2010, 04:40 PM
    Wiring 230v welder has 2 wires and ground which one is hot? Both are same coloc
    Just bought older welder. Instead of plug it has two black wires and a post for the ground. Welder requires 230v 60hz single phase. I have a standard 220 outlet
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Mar 5, 2010, 07:03 PM

    They both are. Welders may not have a neutral connection.

    You have 2 hots and a ground. Each hot is 180 deg out of phase and will measure 120 V with respect to ground/neutral. They will measure 240 with respect to each other.
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