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How to Replace a 4Way Light Switch

How to Wire a 4Way Light Switch? Wiring Diagrams for a 4way switch.

Wiring a 4Way Switch
Electrical Question: How do I wire a new 4way switch?

This electrical question came from: Sayed, from Brentwood, California.

Dave’s Reply:
Thanks for your electrical question Sayed.

How to Wire a 4Way Switch

Application: Wiring a 4Way Light Switch.
Skill Level: Intermediate to Advanced – Best installed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Power Tools for installing electrical wiring, and Voltage Tester.
Estimated Time: Depends on personal level experience and ability to work with hand and power tools.
Precaution: Identify the lighting circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional 3-way or 4-way switch wiring should be done according to local and national electrical codes with a permit and be inspected.

Wiring Connections for 4Way Switches

4 Way Switch Wiring

Note: Two 3way switches are typically wired with one or more 4way light switches, therefore the following resources may assist you:

3-Way Switch Wiring

3 Way Switch Wiring Diagrams

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Complete Guide to Home Electrical Wiring

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Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
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