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	Subject - 220V 50amp to 220V 30amp? jackson I recently purchased a home that has a 230v, 50 amp range, 4 wire receptacle in the garage. I have bought a welder that needs 230v, 30 amp 3 wire connection. Welder does not have a plug yet. There are 3 wires, a black hot, a red hot, and a multi-colored whiteand green nuetral/ground. I would like to make an extention cord about 100'+ to weld away from the garage. What are my best options? I know with extention cords you lose voltage. I already have a 50' run from the box to receptacle with 50 amp line. Can I just connect my 3 wire welder to a 4 wire plug? If so, how? (especiallly interested in how to connect the ground/neutral wire from the welder.) Should I change out the breaker from 50 amp to 30 amp and re-wire receptacle? Can it sustain the length of runs I'm trying to accomplish? 50' run from braker to receptacle is 6/3/w ground. Welder is a Clarke 180 amp mig welder requiring at least 30 amp input. New Christmas welder but can't use until I'm clear about how to hook up safely. Any help would be greatly appreciated. THX Jackson lctrc789 Jackson, I have a welder in my pole barn that has a 30 amp receptacle on a 30 amp breaker, what I did was use 6/3 w gr. SJO cord install a male receptacle on that and then used a 30 amp receptacle (female) in a 4 11/116 box with a kellum grip to hold wire properly then plug my welder to that with the proper recpt. and I have 50 ft. + of cord to move the welder around where I need it. The recpt. is a 4 wire recpt. that is grounded the same way the welder is supposed to be. Hope this has shed some light on your problem.