Neutral wire bypasses first three-way switch. Grounding wires are pigtailed to the light fixture boxes, and to the switch box terminals. Some people prefer to do this before feeding into the switch box, but it doesn't matter. Mark both ends of this wire by wrapping it with black electrical tape to alert others working on the circuit later that it is no longer neutral. This way, if you or someone else goes into the boxes for repairs, the white wire taped black will indicate a hot wire.
Here I am showing how to hook some lights up in series. You'll hook this around a screw, which you then tighten to clamp down the wire to the light switch. Make sure you use the power wire. Additionally, the wire should wrap clockwise around the screw.
The switches are wider than regular single-pole switches and they have three terminal screws on the side sometimes back of the switch housing. Click here to share your story. If not marked, the common terminal may be color-coded black or brass.
The ground wire should be connected to the neutral terminal bar. Connect all ground wires as previously described, if not already completed. This way, you will ensure all connections are made properly.
Help wiring a 3 way switch
For these reasons, it is widely used. End-of-Run Lights Controlled by Two Three-Way Switches These end-of-run lights are controlled by two three-way switches with a two-wire cable power source coming through the first three-way switch. All of the four terminals are brass colored.
Replace the drywall, coverings, etc. This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. Not all switches are made for three-way wiring. The last screw is the common terminal. For safety, always install a three-way switch that has a grounding screw.
Electrical Made Easy
This way, all the wires can be used with no waste. Hey, doing it yourself is great but if you are unsure of the advice given or the methods in which to job is done, don't do it. Connect the black insulated wire to the remaining unused terminal screw on the switch. Once again, the white neutral wires are simply joined together, and the grounding wires are joined together with pigtails connecting the switch and to the box, if it is metal.
How should I connect my 3 way switch
Option Two Three way switch with the power going through the light. This is a very important step. If equipped with a separate ground bar, rather than connecting to the neutral terminal bar, services dating the ground wire can connect to the ground terminal bar. Note there are slight differences with the wiring at the light fixtures.
First, connect all ground wires as previously described. Connect the ground wire to the circuit ground wire s with a wire nut or other approved connection see How to Connect Electrical Wire. Choose a direction that will make it easy for you to then thread the wire towards your second switch box.
See color key in each figure. In fact, I wired my whole home myself with no prior experience and I didn't get shocked even once. Fold all wires carefully into the boxes and secure devices and fixture with screws.
The black and white wires follow this path, as does the ground wire. If you run across an older switch without a grounding screw, it should be replaced with a newer, grounded switch. Be sure the circuit is completely dead! There are three screw terminals on the body of the switch, red bank dating in addition to the green grounding screw. This third wire allows power to run to your second switch even if the first one is off.
- Make sure your fuse is turned off while wiring this kind of wire!
- You want to zig-zag them, so they come about a bit like an accordion.
- If you need more than two lights, just keep pig-tailing the white and black wires to keep the circuit going.
Understanding Three-Way Wall Switches
The red wire then goes with the other three to connect both switches. This must be done at each and every box that a cable enters and at each device that provides a termination point for ground. Attach the hanging ground wire the pigtail to the green grounding screw. Three way switches have become very popular because it adds convenience and ease to lighting in large rooms, hallways and staircases.
All wire is utilized this way without waste. The system also requires three-way switches. Loop it around the screw and fasten it down like any other cable. Twist the two white, dating speed neutral wires together in each box and twist on a wire nut.
Only wrap solid wire around a terminal screw. Some light fixtures with a chain pull have a ground connection. Both the black and white wires end at the light. The black or hot wire is routed to a switch and then is fed back through the connections via a white wire taped with black electrician's tape to indicate that it is hot.
- The ground wire goes through both switch boxes and the ceiling light box and it is connected at all junctions, except the light, with a pigtail short piece of wire and wire connector.
- The ground wire is connected to the light fixture lead and is pigtailed to the box, if it is metal.
- Connect wires in the light fixture's box.
- Install plates and covers.
- The methods shown here are some of the safest and most versatile, though not the only options.
3 Way Switch Wiring Diagram
Connect the red insulated wire to one of the two unused terminal screws it does not matter which. Note that the shadings of the wires in the illustrations represent actual color. Light switch at one end, lights in the middle, dating no pressure light switch at the other end. Note connections of the ground wire.
Never introduce ground wire s to a terminal bar with only white or gray insulated wires connected or vice versa. The switches operate both lights, but the wiring ensures that if one bulb should burn out, the other will still work. The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. Repeat on the other end and run it into your second switch box. Then, attach the green ground wire to the switch and the box, and attach the red wire to the third terminal.
How to Hook Up a 3 Way Switch Z-wave Zone
The first thing you will need to determine is where the power is coming from and where the switches are positioned. To ensure your safety, make sure you test the wires prior to attaching them to your switch with a voltage tester. Most codes dictate that all wire connections must be placed inside a switch, receptacle or junction box. Hook the red one up to the side with you black power wire, and the black on the identical screw on the other side of the switch.