Originally Posted by cmac2012

I just bought a Lincoln 175 HD MIG welder. My neighbor at my warehouse is a metal fabricator and he confirmed my suspicion that 220 was about the only way to go. My shop has 3 phase power coming into the box, which I don't really need, no circuits wired up at any rate, and only one 220 circuit, for the baseboard heater and it's a 20 amper. I need to put in a dedicated circuit going to the garage part of my shop, 50 feet away.

Lincoln says a 40 amp breaker is required. This would mean 8-2 with ground. I've seen a couple of web sites that claim 10-2 w/G and a 30 amp breaker is more than enough. My neighbor also thought 30 would do it.

Whattyathink?