Wiring Diagram Of A Three Way Switch. Electrically a typical 3 way switch is a single pole double throw spdt switch. The diagrams for 3 way switch wiring i broke down into the following sections see below.
With a pair of 3 way switches either switch can make or break the connection that completes the circuit to the light. Wire up 3 way 12v switch. Three wire cable runs between the switches and 2 wire cable runs to the light.
The three way switch wiring diagram depicted at the top of this post is probably the most common method for wiring three way switches.
Most likely to be found with wires in conduit. The third wire is connected between one of the traveler terminals of the two 3 way switches. 3 way switch is a multiway switching or interconnection of two or more electrical switches to control an electrical load from more than one location. With these diagrams below it will take the guess work out of wiring.