220 for welder 4 wire to 3 wire

BADBRAD83 · #1 May 12, 2007, 08:50 AM

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 · 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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