Out Of This World Understanding 3 Way Switches

Stairwells hallways and large rooms with multiple access are all candidates for 3 way circuits.

Understanding 3 way switches. What is a 3 way circuit. This is known as the common screw and it s usually black instead of brass or silver. The basics of single pole switches and 3 way switches including a visual of the flow of electricity through these switches are explained and demonstrated by terry peterman the internet electrician.

Three way switches are always used in pairs and include special wiring connections. Three way switches are commonly used to control a light fixture from two different locations. 3 way switches are used to control lights with two switches.

A 3 way switch circuit is explained and described in detail including visual animation and practical application. 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. A three way light switch is different than a traditional single pole light switch as it contains an extra screw to connect an extra wire.

Video includes the bonus addition of addin. 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. This is the 3 wire cable which you must have to wire a 3 way light switch.

Another dead giveaway of a three way switch is the absence of on and off markings. Regardless of what 3 way switch wiring diagram you re following you ll need to use a 3 wire cable to connect the two 3 way light switches. Understanding single pole and 3 way switches.

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. For example a long hallway or stairway might use a pair of three way switches at each end so that lights can be turned on when approaching one end of the hall or stairway then shut off from the other end. This informative video will have you understanding single pole and 3 way switches.