Traveler wires are interchangeable. It should also help in understanding the functions of each type of switch.
Travelers How To Wire A Light Switch
3 way switch wiring with 2 wire cable. It all depends on what you are wiring and what the electrical application will be. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. 3 way switch wire diagram power to light switch. Typical 3 way switch wiring nm cable. The first way of wiring uses a couple of two way light switches with a 3 wire control. 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.
The following image shows the front and back view of a typical household two way switch. If you are trying to troubleshoot a 3 way switch operation you will need to identify the function of each wire. 3 way switch wiring methods best blog explaining 3 ways with wiring diagrams photos and 10 different 3 way switch wiring methods used in buildings throughout the us 120 volt. Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load. 2 and 3 wire cables can have several uses such as home run power feeds going back to the panel branch feeds single switching 3 way switching 4 way switching etc. In the future a person could add another receptacle by running a 2 wire cable from either switch box to the new receptacle.
The cable consist of a black wire a. Each 3 way switch in these examples are controlling the power source to the same load. All three way switch and 2 way switch wiring diagrams have the same basic components. Run a length of 14 2 cable from each 3 way switch to the light fixture and a third one between the. This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light switch. There is a way to wire a light fixture controlled with two 3 way switches using only 14 2 cable.
Standard 2 way switch wiring. The two hot wires of three wire cable connect to a pair of. When wiring a 2 way switch circuit all youre really doing is controlling the power flow switching offon to the load a light lamp outlet ceiling fan etc now a typical circuit will contain a 3 wire cable known as romex. Tipthe white or neutral wire goes completely through the connection system with pigtail connections at both switches and the first light box. The following is the simple schematic of a three wire 2 way switch wiring. Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches.
When wiring a 3 way switch circuit we will be using a 3 wire cable known as romex coming from the source such as the breaker box. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. In this diagram the incoming hot wire attaches to the first switchs common dark colored terminal. The black line wire connects to the common terminal of the first 3 way switch.
Gallery of 3 Way Switch Wiring With 2 Wire Cable
