3 Way Intermediate Switch Wiring Diagram. All three switches are connected together by a three core and earth control cable. On this circuit you would need the middle switch (eg the one at the top of the stairs) to be an intermediate switch.
The three-way switch is a variation of the standard single-pole switch, which controls a light only from one location. Visit My website for Electrical Jobs,Smart Home Automation Products & Systems"Diagram" https. Three-way switches allow for controlling a light fixture from two separate locations, these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room.
They are always installed in pairs and use special wiring connections.
Momentary Switches - add additional wire between switches.
Dotted lines show alternative switch positions. It's best to have a wiring diagram if possible. Notes on wiring Reduce unwanted electrical noise by using.
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