DrewE wrote:
The table says that for 30A circuits, only 30A receptacles are permitted. (For 20A circuits, either 15 or 20A receptacles are permitted. For 15A circuits, though, 20A receptacles are not permitted.)
I do agree that there is no immediate safety issue with putting a 50A receptacle on a 30A circuit; it's obviously more than capable of handling the current that it could carry. I also don't claim that the code is entirely self-evident or perfectly logical. Presumably the idea is to prevent excessive tripping of breakers or running the undersized circuit at the very edge of its capacity all the time or something similar (and maybe also to encourage the makers of equipment to provide appropriately sized power cords and plugs, rather than oversizing them for "convenience" or other reasons).
@DrewE, I appreciate the information. I agree that a 14-50 outlet on dual 30A breakers is asking for trouble. Which is why I would clearly label the outlet with the limitation.
I think the suggestion currently agreed upon -- namely to reorder a few breakers and just work in a dual 50A breaker -- is a MUCH better solution though.
I was originally trying to avoid panel work, but since the panel's right there... it's a cleaner solution and will double as a Tesla charging station down the road for a future homeowner. (not for US ... we're putting our Tesla money into an RV!)
