Really not sure where to put this, so I'll put it here. Mods, move it if you feel it needs to be.
I'm almost sure that this is a 50 amp breaker on the 220, but I'm not 100%. I'll post a couple pictures to see if you can tell. I want to make sure I don't have to change it out for a new welder. Not a big deal if I do, just don't want to if I don't have to.