Just picked up a 110a 220v Mig Welder(with no plug end) and need to know what kind of end I need and if I can wire it into my garage. The garage is already wired with 2 125/250v NEMA 10-30 outlets. One with a triangular center post and the other has a round center post. Both (I assume) are wired through a 2-pole 50a circuit breaker labeled "Welder" at the box. Now my Q is can I wire on a male 10-30 end and rock and roll or do I need to change somethings or all things? Any help would be appreciated. I am not familiar with household electricity.