Four-Way Switches & How They Work

About: Linux user. Started out in 1979 with a TRS-80 with only 4K of RAM. Then went onto CP/M then DOS and after that Windows (Version 3.1). My last Windows was XP. Switched to Linux and never looked back. My fath...

This is the second of my series of tutorials on switches. My first was Three-Way Switches & How They Work
Three-Way switches are used anytime a person wants to control a light from two different locations.  For example a hallway may have a switch at both ends for controlling the hall light.

But when a person wants to control a light from more than two locations then four-ways are needed.  These tutorials are more into explaining how the switches work rather than how to wire them. There are many other tutorials already existing on wiring them.  This video was created with the hope that after watching this one, the other tutorials will be easier to comprehend and a person will have a better chance in troubleshooting their circuits.



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    3 Discussions

    Vincent Cable

    3 years ago

    Amazing & simple explanation of what seemed a difficult switch (4 way) to understand..
    Your traveller wires in diagram & youtube explanation, made it so simple to grasp & understand.
    Thank you very much my friend.
    A valueable inside Phil.!!


    6 years ago on Introduction

    Awesome! Best explanation with demo I have ever seen, Thank you!


    6 years ago on Introduction

    These (both instructables) are very useful info, thanks for sharing.