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    dwayne71's Avatar
    dwayne71 Posts: 3, Reputation: 1
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    #1

    Jul 12, 2008, 01:18 PM
    220 outlet in my garage
    I hope this helps, the breaker is a double 40 it has 4 wires 3 of which are about 3/8 inch in diameter or so ,sorry unsure what gauge. And the bare ground wire. Note: nothing else on that breaker. The outlet is a 30 amp 125/250 volt4 hole. Again I would like to change this to a 3 wire plug to power a welder that is a 230v 50a 60h single phaze input, I hope this is better info than my first question.
    Washington1's Avatar
    Washington1 Posts: 798, Reputation: 36
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    #2

    Jul 12, 2008, 02:12 PM
    Does your welder
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #3

    Jul 12, 2008, 06:25 PM
    Youn eed to verify the size of the wire going to the existing plug. You will need to use #6 wire to carry the 50 amp load. Does the welder require a 3 or 4 prong receptacle?
    Washington1's Avatar
    Washington1 Posts: 798, Reputation: 36
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    #4

    Jul 12, 2008, 08:15 PM
    Dwayne,

    You need to stay in one thread. You are all over the place. You do not have to start a new thread to post answers, or questions.



    Missouri,

    If I used #8 THHN for my arc welder, what size (Max size) OCPD can I use?

    Dwayne, can you post the model number and manufacture name of your welder. Just want to verify your information.

    Thanks!

    PS: A 3/8 diameter is close to being a #6-3NM-b or closer to being a #6-2NM-b<<<yet, don't go installing anything. I agree with Missouri, that wire needs to be verified.
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