The origins of 60-Hz as a power frequency

Re:The origins of 60-Hz as a power frequency by mystified5016 on Friday February 07, 2025 @03:43PM (#42977262)

No, the standard in the US is 15 or 20A. 20 is more popular nowadays.

240V appliances typically get a 35 or 50A circuit.

But then you also have to deal with the fact that a lot of homes have wiring that can only handle 10A, but someone has replaced the glass fuse with a 20A breaker. Fun stuff.

[ Parent | on HN ]

Re:The origins of 60-Hz as a power frequency by bardak on Friday February 07, 2025 @05:29PM (#42978247)

I still haven't seen a single 20A domestic appliance though

[ Parent | on HN ]

Re:The origins of 60-Hz as a power frequency by mjevans on Friday February 07, 2025 @06:56PM (#42978890)

I have, though it's semi-prosumer equipment. The largest UPS systems for standard systems, like someone might want for a small home-lab rack, can be found with 20A 120V plugs that work in normal outlets; if they're on a 20A rated circuit like a kitchen refrigerator or bathroom sink outlet (the two most common sorts in rental units).

I suspect some beauty products might also use 20A, or in combination easily reach that.

[ Parent | on HN ]

Re:The origins of 60-Hz as a power frequency by bcoates on Friday February 07, 2025 @11:06PM (#42980288)

Very common in light commercial applications but almost unheard of in residential because nobody installs nema 20a sockets in houses even if the circuit can handle it

[ Parent | on HN ]