Dad! is that you???
Gee imagine, two electrodes and we're both named bull. shheet!
anywaz, 10 is rated in ye ol happy code book at 35-40 amps depending on your insulation. although it should be fused at no more than a 30 amp ckt bkr. Dont know the needs of your welder but it will say on the nameplate. yes you can just cut off or not use the neutral. happy welding. my welder says it uses 53 amps on the primary side. (a stick welder) have never had any trouble with it so far on a 50A breaker but ya aint spozed to do that!! i used 10 guage because i got it free too. just keep an eye on it. feel it once in a while. put it on a 30A breaker to be really safe. i dont think it will trip. you can use the one you normally use for your dryer if you dont want to buy another one.