The diagrams below show the conventional wiring for 3 way switches. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram.
Tutorial 3 Way Switches And 4 Way Switches
Schematic diagram of three way switch. Two very old three way switches. Two very old three way switches are depicted in the photo above. The basic 3 way switch wiring diagram this is the most common and the easiest wiring diagram to follow of any of the wiring diagrams for a 3 way switch circuit. Take a closer look at a 3 way switch wiring diagram. Wiring a 3 way light switch. With these diagrams below it will take the guess work out of wiring.
3 way switch schematic wiring diagram. Unfortunately not all 3 way switches are wired the conventional way. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. Assortment of 3 way switch wiring schematic. Refer to the above 3 way switch diagram. This wire diagram shows the wiring for source power into the first three way switch then 3 wire cable to the next 3 way light switch and then on to the light or light fixtures.
Three wire cable runs between the switches and 2 wire cable runs to the light. A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Below is a simple 3 way schematic that can be applied to all three way electrical light switch connections. Once your boxes are in place you can start the process of installing and wiring the switches themselves. For example a long hallway or stairway might use a pair of three way.
Traveler wires are interchangeable. In this diagram the electrical source is at the first switch and the light is located at the end of the circuit. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Wiring diagram 3 way switch with light at the end. The black line wire connects to the common terminal of the first 3 way switch.
The black and red wires between sw1 and sw2 are connected to the traveler terminals. Wall switches used to control ceiling light fixtures or other fixtures come in three types. It reveals the components of the circuit as streamlined shapes and the power and also signal links in between the gadgets. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Regardless of what 3 way switch wiring diagram youre following youll need to use a 3 wire cable to connect the two 3 way light. This might seem intimidating but it does not have to be.
Typical 3 way switch wiring nm cable. This is only a wiring schematic and not the actual wiring method used for 3 way switch installations. If you have any problems with these switches it may be best to call an electrician. Run new cable romex between the 3 way switches. 3 way switch wiring diagram. Most common is the single pole switch the type used to control a light fixture from a single locationthe next most common is the three way switch which is commonly used to control a light fixture from two different locations.
Gallery of Schematic Diagram Of Three Way Switch
