Ace Four Way Switching
Each set of terminals is one of the toggle positions.
Four way switching. They do not have an on off position like single pole switches. In the down position the current flows through the other two terminals. Many times four way switches will.
For a discussion of how to wire such circuits see 3 way and 4 way light switches. There are four terminals that provide two sets of toggle positions on a four way switch. A 4 way switch has 4 terminals or poles.
Below is a conventional wiring diagram for a 4. It is important to understand how these switches are wired before attempting to troubleshoot or replace. When the switch is in the up position the current can flow through two terminals.
Two terminal poles are labeled in and two are labeled out pairs of wires called travelers will connect to each side. 4 way switch configurations are used to control lights with three or more switches. How 4 way switches work an animation shown above is an animation of a circuit using three switches to control a light.
When the switch is operated current will either travel straight through or crisscross. A 3 way switch is used on each end with one or more 4 way switches in between the two 3 way switches.