Simple 4 Way Circuit
The circuit neutral is spliced at each switch box through to the light fixture using the white wire.
4 way circuit. Each set of terminals is one of the toggle positions. 4 way switches are a convenient way to operate lighting fixtures from three or more locations. There are four terminals that provide two sets of toggle positions on a four way switch.
First of all we need to go over a little basic terminology on switches. Four way switches are used to control lighting from three or more locations. A 4 way intermediate switch is a purpose built double pole double throw dpdt switch internally wired in manufacture to reverse the connections between the input and output and having only four external terminals.
Fully explained 4 way switch diagrams. This allows you to control a load from other locations in addition to the 2 locations that a 3 way circuit provides. Four way switches are used in combination with three way switches.
The indication of the light stage should be properly placed on four lanes. The electrical wiring adds additional wiring to the same principles of 3 way switching. Fully explained 4 way switch diagrams.
The other one is an indication of the light stage. The four way traffic light circuit consists of two stages. 3 way switch diagram 4 way switch wiring.
The first one is the timing and counting stages. How to wire a 4 way switch. Wiring a 4 way switch is simply adding a switch to an already existing 3 way switch circuit.