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Electrical Wire and Cable

Three Way Switch Wire Size

By Dave Rongey - Summary:

Can I use 14 gauge wire for the switch and traveler run with a 3 way switch?

What Size Wire Should be Used for 3-Way Switches

Question: Can I use 14 gauge wire for the switch/traveler run with a 3 way switch? The circuit is 12 gauge. Thanks.

This electrical question came from: Al, a Homeowner from Temecula, California

Dave’s Reply:
Thanks for your electrical question Al.
Wiring a Three Way Switch
Al, no – the gauge of the wiring that is being added to the existing electrical wiring must match the existing wire gauge. The circuit wiring integrity must be maintained to prevent any hazardous conditions.

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