How to wire a 2 way switch

You have an incoming hot wire (black) going to one screw (it does not matter if you use the brass or silver screw ) on the side of the 2-way switch and a black wire from the other screw on the 2-way switch going to the load (light, ceiling fan etc.). To add the switch , you’ll use one of two wiring a light switch diagrams, depending on whether the power comes to your light switch first (the most common situation) or to the light fixture first. Two three-way switches control one light with the electric power coming through the light on a two wire cable.

Two way switch lighting circuit diagrams. Here is our selection of two way switch circuit diagrams. The electrical symbol indicates where power enters the circuit. If you need to know how to wire a two way switch then this is the place to start. Do you need to know how a two way switch works before you check out the circuit diagrams?

At the light fixture, there is one bundle of wires coming from switch one, and one bundle coming from switch two. First, twist the two bare copper ground wires together. Twist the two red wires together and attach a wire nut. Take the white wire from switch two and twist it with the black wire from switch one.

Here we have a two way switching system that utilises two single gang two-way switches and a three wire control, shown in the old cable colours. It is possible to achieve a similar result using a two wire control which, although it saves on cable, is not recommended. Disconnect the three wires from the three-way switch. Turn off the power at the breaker box. Connect the wire from the common lug to the switch leg of the two-way switch , and connect the traveler leg that was hot from the test above to the power leg of the two-way switch.

I would put a PIR in the garage and control nothing from the house. Otherwise it just will not work the way you want. Not knowing what these device does makes it a little hard to confirm operation, but it looks to me like the old switch alternated one set of contacts or the other, and the hot could come from different sources, but how it was used it has a. I’ve included this method of way switching for reference because you may come across it in old homes but I don’t recommend you use it. If you are doing a new install or replacing a two way switch system go for the three wire control method. First of all we need to go over a little basic terminology on switches.

Pick the diagram that is most like the scenario you are in and see if you can wire your switch ! In below diagram i shown switch symbols for explanation and function. Two three- way switches control one light with the electric power coming through the first switch , flowing to the second switch , and then to the light fixture. 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.

A 3- way switch allows you to turn a light on or off from two different switches. If you are going to install a new one then go for three wire control method. This is a wiring diagram for a standard 3- way lamp switch. The socket is used with a three way bulb containing separate elements that are energized separately and then together as the switch knob is turned for varying degrees of light.

A basic light switch is a single pole with an on and off label. This allows you to turn the light on and off from one spot in the house. When you control a light in two separate switches, you actually have a three- way switch. Two - way light switches are required for two way switching, these can be identified by looking at the terminals on the back of the switch. There will be a Com (common) terminal a Lterminal and a Lterminal.

To construct this setup we need - two way switches, here common terminal on one switch is connected with phase line and another switch common terminal connected to the lamp loa always prefer switch connection in the Phase line. Dimmers come in two basic wiring configurations: standard single-pole dimmers and three- way dimmers. With a standard single-pole dimmer, a single switch controls the light. With a three- way dimmer, you can control a light with two switches.

You will need a three- way dimmer and a three- way switch. A 4- way switch has two positions. In the first position, the contacts are connected straight through, so that the switch has no effect. In position two, the switch cross connects the contacts on the left with the contacts on the right, in an X connection. Solder one end of a wire to terminal A. Repeat this process for terminal B. Power on your circuit and test to make sure the switch is properly switching between the two signal paths.

A two way switch has terminals. If you look inside an existing wired in two way switch you will see quite a few wires of differing colours. Three- wire cable runs between all the switches and the traveler wires are connected between the two 3-ways and the 4- way. Two- wire cable runs from the last switch to the light fixture and the common on that switch connects to the hot terminal on the light.

Red wire is capped off with a small wire connector or electrical tape. How to Wire a Light Switch - Diagram 1.