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    BADBRAD83's Avatar
    BADBRAD83 Posts: 1, Reputation: 1
    New Member

    May 12, 2007, 08:50 AM
    220 for welder 4 wire to 3 wire
    My garage is wired with a 220 outlet but the plug is for a dryer so I got the outlet I needed the new outlet has 3 conections the old one has 4 I know the red and black are hot but not sure what to do with the white and ground should they be connected to gether or do I not use the white well thanks for the help

    Thanks brad"
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert

    May 12, 2007, 08:51 PM
    White is the neutral. If your welder is 220 volt only you do not need a neutral but you MUST have a ground.

    A electric dryer has a 115 volt motor and that is the reason a dryer has to have two hot legs and one neutral. There was a code change a while back and now range circuits/dryer and others have to have 4 wire hookups.

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