» How to Wire it Right: Guide to Home Electrical Wiring
» Need Electrical Help? Get a Quick Reply! Ask the Electrician
3Way and 4way Switch Wiring
By Dave Rongey
Summary: 3 way and 4 way switches and how they are wired for home lighting applications.
Wiring 3way and 4way Switches
3 way and 4 way switches are often used for applications where 3 or more switches are required.
Ideal locations would be a long hallway where there are more than two bedrooms and bathrooms which are accessed from the same hallway.
Light switches for the hallway light may be conveniently located outside each door leading into the hallway. In these applications 3 way and 4 way light switches may be used.
3way and 4way Switch Wiring Diagram
Special planning must be taken when wiring 3way and 4way switches that will work together in the same area.
The 3-ware cable is installed through each light switch box location, however the 3wauy switches are installed at each end of the hallway and 4way switches are installed in all the switch locations in between the 3way switch locations.
There are several ways to wire 3way and 4way switches, but the key to wiring then is where the power enters the switching circuit , and where the wiring feeds up to the light fixtures.
The Safest Way to Test Electrical Devices and Identify Electric Wires!The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..
The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.