To wire a 3 way light switch youll need 2 3 way light switches 2 2 wire non metallic cables 1 3 wire non metallic cable and 2 6 inch grounding wires. 3 easy ways to hide wires cables in wall find studs duration.
How To Wire A 3 Way Light Switch Family Handyman
How to wire 3 way light switch on 2 wires. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. Since power one hot and one neutral is at both ends the hot at one end is connected to the common while capping off the unused neutral and at the other end the neutral from the power feed is connected to the lights neutral while capping off the unused hot. 3 way switch wiring diagram depicting all wires in the ceiling junction box. Each 3 way switch in these examples are controlling the power source to the same load. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. This guide highlights the procedures for replacing a broken 3 way electrical switch.
Level advanced description power at both ends switch leg at one with a 2 wire 142 or 122 used as travelers. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. The black line wire connects to the common terminal of the first 3 way switch. 15 minutes to change.
Change the light switch that operates on both sides of the wall. 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. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. A 3 way wall switch controls a common light or set of lights from two separate switch locations. Wiring a 3 way light switch. Two way switching explained how to wire 2 way light switch duration.
E lastly if your light fixture isnt wired yet connect the light fixture to the 2 wire romex black and white wires only which leads to your new 3 way light switch 2 and you should have completed your 3 way light switch circuit. If your 3 way light switch 2 is connected between the power supply and the light fixture as is most. 2 blacks wires hot lead 1 red wire relay. Before proceeding make sure you are comfortable working with electrical wires and switches. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. The common terminal of.
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. The engineering mindset 3365167 views. Traveler wires are interchangeable on each switch. Two 3 way switches are required in any 3 way application.
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