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There are single receptacles capable of both 120 and 240V. They're called NEMA 14. NEMA 14-20 technically exists, which would give you multi use 120V or 240V 20
by Kirby64 3y ago
There are single receptacles capable of both 120 and 240V. They're called NEMA 14. NEMA 14-20 technically exists, which would give you multi use 120V or 240V 20 amp outlets. The problem is nobody uses them, as this is non-standard and nothing uses the plug besides industrial stuff.
Unless there's a truly useful application, I doubt it'll see wide use in US. Sure, 240V is nice, but there just isn't that magic thing missing from 1800W appliances today. Being able to boil water a little bit faster is not worth rewiring every house and changing standards around the country.