One must always check the input rating of equipment and not what amperage they expect from the equipment. I once bought a 50 amp breaker as that is standard for a welder. Of course, I was giving the welder its own breaker. I failed to see that it recommended a 60 amp breaker! All wire ratings are for the amp usage and length of wire. Any workshop or garage should be serviced with 220-240v. This cuts down on amp use and wife loss. Earl