# how to connect a three way switch

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How To Wire a 3 Way Light Switch | Family Handyman Add an electrical box for the second three way switch in the basement. It’s likely you’ll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. Feed a length of 14 3 type NM cable (or 12 3, if you’re connecting to 12 gauge wire) between the two boxes. 3 Way Switch Wiring Diagram Easy 3 Way Switch Wiring Diagram. Take a closer look at a 3 way switch wiring diagram. Pick the diagram that is most like the scenario you are in and see if you can wire your switch! This might seem intimidating, but it does not have to be. With these diagrams below it will take the guess work out of wiring. How to Wire a 3 Way Light Switch (with Pictures) wikiHow First, run a 2 wire cable from the wall power to the black screw on 1 of the switches. Then, connect the 2 switches by splitting the 3 wire cable apart and attaching each of the 3 wires to one of the other 3 screws on each switch. Finally, run the last 2 wire cable from the second switch's black screw to the light. How to Wire a 3 Way Light Switch | Hunker Three way switch wiring requires the use of a three conductor cable to connect the two switches. The red wire in the cable is known as the traveler, and it connects to the black terminal screws on the pair of switches. Wiring a three way circuit is sometimes easier if you have a diagram. How to Wire and Install 3 way Switches In this video I show how to wire and install 3 way switches. ... How to install a three way switch to a existing one way switch Duration: 10:03. askmediy 314,825 views. 10:03. Wiring a 3 Way Switch how to wire it When wiring a 3 way switch circuit, we will be using a 3 wire cable known as romex coming from the source (such as the breaker box). Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load.