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
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
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