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. The hot source is connected to the common terminal of sw1.
Two Way Light Switching Explained
How to wire two lights on a three way switch. Before proceeding make sure you are comfortable working with electrical wires and switches. 3 way switch multiple lights between switches below ive shown two variations of wiring multiple lights between 3 way switches. Wiring a 3 way light switch. This guide highlights the procedures for replacing a broken 3 way electrical switch. Wiring a 3 way switch with multiple lights. End of run lights controlled by two three way switches these end of run lights are controlled by two three way switches with a two wire cable power source coming through the first three way switch.
Here the source is at the first switch sw1 and 3 wire cable runs from there to the first light l1. If you are trying to troubleshoot a 3 way switch operation you will need to identify the function of each wire. This option actually requires you to run two romex lines between the lights. Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches. Two 3 way switches are required in any 3 way application. 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.
Two 2 wire cables c3 and c4 run between the fixtures and a 3 wire cable c2 runs from the second fixture f2 to the second 3 way switch sw2. Option 1 is for power into the first switch wire to the lights and lastly wire from the light to the other switch. Tipthe white or neutral wire goes completely through the connection system with pigtail connections at both switches and the first light box. All three way switch and 2 way switch wiring diagrams have the same basic components. In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.
In this circuit two light fixtures are shown but more can be added by duplicating the wiring arrangement between the fixtures for each additional light. First run a 2 wire cable from the wall power to the black screw on 1 of the switches. A 3 way wall switch controls a common light or set of lights from two separate switch locations. Three wire cable runs between the switches and the outlet. This circuit is wired the same way as the 3 way lights at this link.