Yup, if your still dealing with 120v for mining your going to burn something down eventually (especially if the outlet is not near your panel).

This is what all my miners run off...DIY 240v junction boxes running 10AWG to 30A double pole breakers in panel (capable of at least 6kw continous draw per box). Each box has relays controlled by wireless pi's, so always have full remote control shutoff/start up for locked hardware etc.

Dont need to step foot in mine unless im adding new stuff

How bout that for an equivalent of a 1K USD PDU unit for 50 bucks worth of parts