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Residential Wiring -  The Right Way!

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4 Way Switch Circuits

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4 Way Switch Circuit Animation

The most common use of 4 way switch circuits is to control one or more lighting fixtures from 3 or more locations. There really is no limit to how many switches that can be used, however on this site I have created wiring scenarios for 3 switches, if more is desired then read the article at the link bellow in regards to adding additional 4 way switches. Three way switches are also required at the beginning and end of the circuit, with 4 way switches between these.

 There are a variety of different ways to wire a 4 way switch circuit, factors that can influence your selection can include...

Click on the desired selection bellow


Identifying the Correct Screw on 4-Way and 3-Way Switches  
Adding Additional 4 way switches  
If 2011 NEC 404.2 (C) is not applicable to you or if you fall under an exception to this new rule
Power Source at Fixture Feed to 1st Switch
Power Source at Fixture Feed to 2nd Switch
Power Source at Fixture Feed to 3rd Switch
Power Source 1st switch, Fixture Feed 1st switch
Power Source 1st switch, Fixture Feed 2nd switch
Power Source 1st switch, Fixture Feed 3rd switch
Power Source 2nd switch, Fixture Feed 1st switch
Power Source 2nd switch, Fixture Feed 2nd switch
Power Source 2nd switch, Fixture Feed 3rd switch
Power Source 3rd switch, Fixture Feed 1st switch
Power Source 3rd switch, Fixture Feed 2nd switch
Power Source 3rd switch, Fixture Feed 3rd switch
 
2011 NEC 404.2 (C) Compliant Switch Circuit Options
Power Source at Fixture Feed to 1st Switch
Power Source at Fixture Feed to 2nd Switch
Power Source at Fixture Feed to 3rd Switch
Power Source 1st switch, Fixture Feed 1st switch
Power Source 1st switch, Fixture Feed 2nd switch
Power Source 1st switch, Fixture Feed 3rd switch
Power Source 2nd switch, Fixture Feed 1st switch
Power Source 2nd switch, Fixture Feed 2nd switch
Power Source 2nd switch, Fixture Feed 3rd switch
Power Source 3rd switch, Fixture Feed 1st switch
Power Source 3rd switch, Fixture Feed 2nd switch
Power Source 3rd switch, Fixture Feed 3rd switch

Written By: Donald Kerr
Proof Read / Released: July 12, 2013


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