How do you hook up a 3 way light switch

how do you hook up a 3 way light switch

How do you hook up a 3 way switch?

Hook the curled end of the wire under the screw, then tighten down the screw to hold the wire firmly in place. This screw is usually in the upper left side of the switch and is painted black, but check the guide that comes with your switch if youre unsure. Not all switches are made for three-way wiring.

How do you wire a switch to a light switch?

When you get to Switch 1, attach the black wire to one terminal and the black-taped white wire to the other. Then, attach the green ground wire to the switch and the box, and attach the red wire to the third terminal. Splice the green, black and black-taped white wires to run them to Switch 2, where you connect them the same way.

How does a 3 way light switch work?

A 3-way light switch allows you to control a light source from two separate points. Although a 3 way is one of the hardest electrical circuits to figure out, its also one of the most useful. Note: there are several ways to install a 3 Way Light Switch.

Where does the Red Wire go on a 3 way switch?

The 3 wire cable enters through the top of the first switch box. The red insulated wire connects to either one of the 2 unused terminal screws (shown in the image above to be on the top left and right sides of both 3-way switches). It does not matter to which terminal screw this wire is connected.

How do you wire a 3 way switch?

You have two options for wiring a 3 way switch: running the power through the switches to the light or from the light to the switches. In both options, we’ll have four colors of wire, and you need to understand their different uses before we move on. Black - This is a HOT wire, meaning that power is running through this wire.

What is a 3-way light switch?

A 3-way light switch allows you to control a light source from two separate points. Although a 3 way is one of the hardest electrical circuits to figure out, its also one of the most useful.

Why are the wires on my 3 way switches Hot?

If the circuit’s power is on, any of these may be hot depending on how the switches are toggled. The 3-way switch is designed to interrupt the hot wire when it’s turned off. The white wire coming straight from the power source goes uninterrupted into the light fixture while the hot wires are routed through the switches.

How do you wire two light switches together?

Wiring the Switches Flip off power in the room youre working. Screw your two boxes and light fixture into place, then gather your supplies. Slide the 2-wire NM power cable into the first switch box. Remove about 9 inches of sheathing from the wire. Run a 3-wire NM cable between the first and second boxes.

Where does the Black Wire go on a 3 way switch?

The black (line) wire connects to the common terminal of the first 3-way switch. A 3-wire NM connects the traveler terminals of the first and second 3-way switch together.

Where does the hot wire go in a 3 way circuit?

The hot wire from light always goes to the common terminal of the second switch. The traveler wires go from switch to switch connected to the traveler terminals, it doesnt matter which. As long as you keep this in mind, a 3-way circuit becomes really simplified.

How do you connect two 3 way switches together?

The black (line) wire connects to the common terminal of the first 3-way switch. A 3-wire NM connects the traveler terminals of the first and second 3-way switch together. Traveler wires are interchangeable on each switch. The common terminal of the second 3-way switch connects to the light fixture (s).

Where does the Red Wire go on a light switch?

The red wire will go on one of the brass screws, but whether it goes on the left or the right depends on how the room is wired. If you don’t know how it was, connect the red wire to one of them, turn the power back on, and try the lights. If the switches malfunction, switch the lower wires on the new switch.

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