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 black line wire connects to the common terminal of the first 3 way switch.

The Power Source In This Circuit Enters The Light Fixture
3 way switch common wire. If there is a bare ground wire attach that to the ground lug of the switch. The hot wire from the breaker usually black neutral. Traveler wire terminals these are located on each side of the switch towards the top of the switch. This guide highlights the procedures for replacing a broken 3 way electrical switch. Before you start installing take a look at your new 3 way switch to identify all of the terminals that you will be connecting wires to. Two 3 way switches are required in any 3 way application.
Traveler wires are interchangeable. Make sure power is off. Typical 3 way switch wiring nm cable. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Wall switches used to control ceiling light fixtures or other fixtures come in three types. Attach the other two wires the travelers to the other two terminals of the switch.
For example a long hallway or stairway might use a pair of three way. Wiring a 3 way light switch. In a hallway or large room for example installing three way switches at both ends lets you turn the light fixture on or off from both locations. Before replacing any 3 way switches that are broken turn off the power at the breaker box. Most common is the single pole switch the type used to control a light fixture from a single locationthe next most common is the three way switch which is commonly used to control a light fixture from two different locations. Turn main power off if possible for safety.
A 3 way switch will not have the words on or off written on it. Iâ ve decided to put this faq together to help those with questions about installing ge 3 way switches. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. It may be a different colored screw usually black while the others are brass colored or there may be a stamping on the side or back of th. 3 install the first 3 way switch in the box with the hot wire attaching the hot wire to the common terminal of the switch. Replace any regular switches with the 3 way switches.
A 3 way wall switch controls a common light or set of lights from two separate switch locations. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Most switches have the common marked. A three way wall switch is a common type of light switch that makes it possible to control a ceiling light or other electrical fixture from two different locations in a room.