How to wire a 4 way switch circuit.

Wiring a 4 way light circuit. On this one I have 4 locations from which you can control one light. I did use scrap wire so you will see #12 & #14 wire mixed together. This is not wired to code but only a mock up. Make sure you always use the same size wire in your circuit. #12 on a 20 amp circuit and #14 on a 15 amp circuit.

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[kyclay58]

A 3/way switch will control a light from 2 locations. If you want to control a light from 3 or more locations then you will have a 3/way on the power end of the circuit and another 3/way on the light end of the circuit, In the middle you will need 4/way switches. You can control the light from as many locations as you want as long as you keep adding 4/way switches in middle of the circuit. More than 2 locations and you need to add 4/way switches. The video describes exactly how this is done.

[odmcarp]

how many 3-way switched can there be hooked up in a row? I have 3 Leviton Motion Activated Light Switches that can be used as 3-Way switches. I want to install one switch on each floor. This is a three family, and I want one motion switch on each floor. Any switch should be able to turn on all three lights in the staircase. Is this possible with 3-way switches, or do i need a 4-way on the 2nd floor?