Best 3 Way Switch With Only 2 Wires

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3 way switch with only 2 wires. I think that the most common method used to wire a set of 3 way switches is to bring the two wire line cable into one switch box and bring the two wire load cable into the other switch box. Viewed 2k times 0. The first way of wiring uses a couple of two way light switches with a 3 wire control.

I tested the other wires on the hot red to see which turn the light on and that s one of the black wires. Active 3 years 9 months ago. None are hot unless the other light switch is turned on in which one of the reds is hot.

Ask question asked 3 years 9 months ago. Anybody can ask a question anybody can answer the best answers are voted up and rise to the top home questions tags users unanswered converting to a 3 way switch with a 2 wire cable. Fyi i have the same thing going on with a switch by the kitchen and one at the bottom of the basement stairs removed a snarl of wires and now the 3 way switch has to be on at the bottom of the stairs in order to work from.

All the blacks and all the whites are tied together meaning you have 2 hot wires leaving the box and two neutral wires leaving the box. The l1 terminals of both the switches are connected to line or phase or live of the ac supply. In the future a person could add another receptacle by running a 2 wire cable from either switch box to the new receptacle.

These 3 wires are wrapped in a sheathing. Running only an individual wire without a ground or sheathing or conduit is not permitted. This method is depicted in the diagram at the top of this post.

Since only one wire and the ground are used the other unused wire is capped off and saved for possible future use. Sign up to join this community. You can observe in the schematic that both the com terminals are connected together.