Tripple Switch Electrical Plan Drawing
How to Wire a iii-Way Light Switch
3-mode switch diagrams and instructions to alter a unmarried-pole switch to a 3-way switch.
Time
A full solar day
Complexity
Intermediate
Cost
$51–100
Introduction
This story features diagrams that bear witness how to wire 3-mode switches. The wiring is more complicated than a traditional unmarried-pole switch, just nosotros'll explicate how to make the connections. Once you're done, you lot'll be able to control a light from 2 switches.
Tools Required
Materials Required
- 14-3 or 12-3 cable
- Three-way switches (ii)
Wiring a 3-Way Light Switch
Wiring a 3-mode lite switch is certainly more complicated than that of the more mutual unmarried-pole switch, but yous can figure it out if yous follow our 3-way switch wiring diagram.
With a pair of 3-manner switches, either can make or suspension the connection that completes the circuit to the light. The whole wiring a light switch project can be completed in a few hours if you lot don't have to exercise whatever drywall removal and repair.
Continue reading and learn how to wire a light switch. Also, use the three-manner switch wiring diagram to learn calorie-free switch wiring.
For a Visual Walkthrough of How to Wire a three-Way Light Switch, Watch this Video:
Projection step-by-pace (5)
Footstep 1
Directions for Wiring a iii-Mode Light Switch Yourself:
To add the switch, you lot'll utilise ane of ii wiring a light switch diagrams (shown below), depending on whether the power comes to your low-cal switch kickoff (the most common situation) or to the lite fixture first. Either style, consummate these five steps for 3-way low-cal switch wiring:
- Turn off the correct circuit at your electrical console.
- Add an electrical box for the second 3-fashion switch in the basement.
- Pro tip: It's likely you'll also demand to replace the existing switch box with a larger one to conform the extra wires for the 3 way switch.
- Feed a length of 14-three type NM cablevision (or 12-3, if y'all're connecting to 12-judge wire) between the 2 boxes. The 14-3 cable has three insulated conductors: white, blackness and ruddy (plus a bare ground wire).
- Connect the wires to the new three-mode switches with ground screws using one of the two wiring diagrams (Fig. A or B).
- Pro tip: The switches will be identified past a characterization on the mutual terminal and/or the last screw will be a different color.
- Make sure to wrap black electrical record around the ends of all white wires used as travelers between the 3-manner switches. If you have the setup shown in Fig. A, also wrap black tape around the white wire from the switch to the light.
- Pro tip: This way, you lot and others will know these wires are "hot" and non neutral like most white wires.
If you lot have aluminum wiring, phone call in a licensed pro who's certified to work with it. This wiring is tiresome gray, not the tiresome orangish that'due south characteristic of copper.
Step 2
Figure A: 3-Way Switch Wire Diagram — Power to Calorie-free Fixture
This 3-style light switch wiring diagram shows how to practise the light switch wiring and the lite when the ability is coming to the light fixture.
- In this diagram, power enters the fixture box.
- The blackness hot wire connects to the far right switch's mutual terminal.
- Red and blue wires link traveler terminals of both switches.
- The scarlet wire, which is continued to the beginning switch's common terminal, leads dorsum to the fixture.
Pace iii
Figure B: 3-Manner Switch Wire Diagram — Ability to Lite Switch
This 3 way switch wiring diagram shows how to wire the switches and the lite when the power is coming to the lite switch.
- In this diagram, the incoming hot wire attaches to the first switch's mutual dark-colored terminal.
- The 2 hot wires of three-wire cable connect to a pair of brass-colored traveler terminals on each switch.
- The fixture's hot wire connects to the second switch'due south common terminal.
Step 4
Effigy C: iii-Mode Switch Wire Diagram — Power to Light Switch with Fixture Between Switches
In this diagram, ability enters the fixture box.
- The incoming hot wire is connected to the right switch'southward common final.
- Two lengths of 4-wire with basis cablevision, joined at the fixture box, link the right and left switch traveler terminals to each other and to the fixture.
Step 5
Next, Scout a Video to Larn How to Supervene upon a iii-Way Switch:
Family Handyman editor Rick Muscoplat will teach you how to replace a iii way switch and share a tip to make this chore a piece of cake.
Originally Published: June 02, 2020
Source: https://www.familyhandyman.com/project/how-to-wire-a-threeway-switch/
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