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3way switch wiring diagram with power in and switched leg in the same box

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You should upgrade or use an alternative browser. Thread starter CrealBilly Start date Jan 16, CrealBilly New User Jeff. Someone will thank me for this, eventually. Senior User. You can use two wire for the travelers also. Old electricians trick. Click to expand Last edited: Jan 18, Oka Casey. Corporate Member. Neither of the or are code, running and extra wire would require the lone wire to be taped to the romex that powers the 3way.

In either case most cites and counties would not pass it, it will work and actually really not a big deal, except to the inspectors. The House I bought the previous owner was into both electronics and electrical, so this house has 4 - 4way and 4- 3way switches wired in it God only knows why. McRabbet Rob. Jeff, babcock hookup aubry for showing your diagram, which illustrates one of the more common situations where 3-way switches are added.

When I wired my shop 15 years ago, I verified the wiring I needed by "switch" good diagrams like the one you showed. There are many scenarios that are possible depending on where the source of power enters hook if the user wants to have other elements such as receptacles or dimmer switches included.

Here is a hook to several scenarios where these options are diagrammed. CrealBilly said:. For this conversation and using existing or with ground single switch wiring. You'll need a new length of or with ground. Run it to the new or existing box, wire as shown and install 2x 3way switches and a single wire nut and your in business. Don't forget to tape the white wire with length of black electrical tape. I perfer to mark the white wire with a click to see more sharpie myself.

Alan in Little Washington Alan Schaffter. With just one diagram like this, you can often figure out all other configurations, e. To use only two wire for traveler, you start at light fixture box. Run "hot" to first switch, connecting hot to switch and making up grounds. Wire nut and tape off neutral white wire. Using both white with label and black along with ground connect to other switch. From second switch, run hot back to controlled fixture.

Two wire is a LOT less expensive than three switch. This is especially important when you have multiple two way switches in a circuit. McRabbet said:.

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Oka said:. Rkadish New User Rkadish. Staff member. Rkadish said:. Kerrbuggs1 New User Kenny. Jeff, thank you for sharing this. Way of these days, I'll learn to understand electricity a lot better.

When we started reno in the SC house we had a 3-way with 3 lights on it. Switch 1 up, switch 2 down, 2 lights on Switch 1 up, switch 2 up, all lights off. Switch 2 down, switch 1down, 3 lights on. We've since rewired it.

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