The circuit is all ready wired to an outlet in the garage, for a 220V welder. I was planning on wiring a new outlet in the house. I understand that a 220 2 pole breaker uses 2 hots and the ground. I guess what I'm asking is it OK to use that kind of circuit on the power supples for miners? I know they will run on 220V.
If you already have an outlet you can prob just get a PDU that plugs into the 220v outlet. But yes, the bitmain APW3 psu's take 2 hots and a ground.