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SoftTalker
925 days ago
Oddly named, as they only have two switches in the circuit.
1 comments
JohnFen
925 days ago
They're called "three-way" because there are three elements to the circuits they're used in: two switches and a load.
...or so I was taught, but that explanation always seemed a little dubious to me.
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cyberge99
925 days ago
I thought three-way was for three possible states: up/down, down/up, or down/down(up/up). Switch 1 up, switch 2 down, etc.
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...or so I was taught, but that explanation always seemed a little dubious to me.