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  1. #1
    ptenning Guest

    Question Secondary Contactor?

    My friend has a Hobart AC/DC welder on a trailer and just picked up a wire feed attachment. He also obtained a "secondary contactor" and we're trying to figure out what it's for? Anyone know what purpose the secondary contactor plays in an arc welding setup?

    As far as I can figure, it turns off the current to the gun when you are not welding, making it safe to set the gun on your grounded work and not get a spark. Is this necessary equipment in certain commercial applications? Thanks...

    Phil

  2. #2
    Join Date
    Nov 2006
    Location
    Stafford VA
    Posts
    1

    Default

    You are right it keeps the wire in the gun off.

  3. #3
    Join Date
    Dec 2006
    Posts
    2

    Default

    I also have a Hobart gas drive and am looking for a feeder and contactor. What brand and model are the feeder and the contactor, and how is their performance on the hobart.

  4. #4
    Join Date
    Dec 2006
    Posts
    2

    Default

    The contactor is not necessary, but very convenient. It keeps you from having to pull the gun away (like a welding rod) when you stop welding. Otherwise the wir would burn back into the gun and stick in the tip.

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