Spectacular A 4 Way Switch

In order for 4 way switches to work they must be installed between two 3 way switches by 14 3 wire.

A 4 way switch. According to the diagram the red and black wires are the traveling wires and the white is the common lead. Four way switches are used to control lighting from three or more locations. A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page.

There are four terminals that provide two sets of toggle positions on a four way switch. A four switch configuration will have two 3 way switches one on each end and two 4 way switches in the middle. The travelers from one 3 way can be wired to either terminal in a pair but don t mix up the pairs on the 4 way or the circuit won t work properly.

Test a 4 way switchturn off power to the switches at the circuit breaker and using a tester make sure power is off. Two terminal poles are labeled in and two are labeled out pairs of wires called travelers will connect to each side. Using a continuity tester check continuity between terminals as shown.

The wire connections do not have to be removed. Lets start wiring a four way switch. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit.

When the switch is operated current will either travel straight through or crisscross. A 4 way switch has five terminals. Both the smart switch and the original 3 way should have labels for common wire and traveling wires.

A four way switch allows the traveller wire from one switch to travel through or criss cross between another switch. Remove all of the switches so you can access the switch terminals. Remove the 4 way and put in the 3 way smart switch.