Context: I have a workshop used for woodworking. On one wall, I have a two-pole (240v) 30a outlet and a regular 120v 20a outlet. I'm building some cabinetry and I plan to convert the outlets in the wall into a junction box and mount the outlets onto the cabinets in a more accessible location.
I'm curious how I should set up the new boxes because I was wanting to do the following:
- One single 20a 240v receptacle (from the 30a circuit - uses only black wires - reserved for future table saw)
- One duplex 20a 120v receptacle (from the 30a circuit - fin removed, using black & white wires from 30a circuit)
- One duplex 20a 120v receptacle (from the 20a circuit)
I don't think I can put them all in a 3-gang box since I won't find an outlet cover with two duplex / one single. So I guess I need 2 separate boxes.
I could do a 2-gang box with four receptacles (the four 120v ones), and a single gang box with the 240v. This would look cleaner in a way, but the wiring is probably messier since there would need to be wires going between the two boxes.
Or, I could do a single gang box with 120v duplex, and a two-gang box with a combo 120/240 receptacles, using a cover like this.
I guess I'm leaning towards the latter but it would be nice if I could have put this all together in one box.
(If it matters, one of the 120v circuits will power a shopvac and the rest of the plugs will power a tool (router/miter saw/table saw etc). Only one tool will run at once but vac/tool will be on separate circuits so they can run together).
edit: The 30a circuit is wired for a dryer but is unused. The electrician put that in when I asked him for a 240v circuit in case I wanted to re-wire the table saw.
edit: Upon further inspection, my 30a circuit is only wired with 10/2 romex, so my proposal isn't going to work without running new cable anyway.