I inherited my father in-laws welder a very old Westinghouse 250 amp arc welder. It will replace my Ward’s welder for better duty cycle, much longer leads, etc.
However I’m perplexed by the wiring of this old welder. Just before I cut off the old plug to replace it with one that will fit my outlet, I noticed it only had two prongs with the neutral missing, figured it had recently been broken off. To wire the new plug did as I’ve done many time before…. Two 110 legs and a neutral.
Plugged in the welder and nothing. Re-checked the plug and all connections were correct and well seated. Pulled the cover off the welder and discovered the switch is connected by two wires; while the neutral is no where to be found, cut short right were the wires enter the unit. That explains why there was no neutral prong on the plug.
I know this welder works, somehow in this configuration; it’s the one I learned to weld with before my father in-laws passing a few years ago. With my understanding of 220 circuits I don’t know how to hook up this old welder. The only thing I can think of is my outlet needs wired with two 110’s on one leg… is this possible?
Great site by the way plan doing a lot of reading here.