three way switch wiring

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sparky1118

Senior Member
Location
Massachusetts
Occupation
Master Electrician
I’ve seen California three ways and understand the wiring. But I’m curious what would be the reasoning for doing it as opposed to a traditional three way wiring?
 

480sparky

Senior Member
Location
Iowegia
I’ve seen California three ways and understand the wiring. But I’m curious what would be the reasoning for doing it as opposed to a traditional three way wiring?

You can run three wires from the house to a detached garage, have a 3-way between them, and still have constant/unswitched power in the garage for lights, outlets, the door operator etc.
 
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