Favorite Schematic Diagram Of Three Way Switch

Home three way switch wiring diagrams 3 way switch schematic.

Schematic diagram of three way switch. Below is a simple 3 way schematic that can be applied to all three way electrical light switch connections. I began at an early age being taught by my dad. At a glance 3 way switches look the same as the common single pole switch but instead of having only two screws on which to make your connections they have two connections on one side and one on the other.

I m john and i ve worked as an electrician for over 40 years. Wiring diagrams for 3 way switches. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut.

3 way switch schematic wiring diagram. With these diagrams below it will take the guess work out of wiring. The diagrams below show the conventional wiring for 3 way switches.

Two very old three way switches are depicted in the photo above. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. This is only a wiring schematic and not the actual wiring method used for 3 way switch installations.

The black and red wires between sw1 and sw2 are connected to the traveler terminals. Turn the power off at circuit breaker. Here i recall many of my jobs experiences and handy tips with the hope that you can gain from what i have learned.

The white wire becomes the energized switch leg as indicated by using black or red electrical tape. 3 way switch diagram 2 above shows the electricity source starting at the fixture. Diagram 1 above shows the electricity source starting at the left 3 way switch.