Wall switches used to control ceiling light fixtures or other fixtures come in three types. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut.
2 Way Switch Wiring Diagram Light Wiring
3 way switch internal diagram. This might seem intimidating but it does not have to be. What is the black screw for on a 3 way switch diagram. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. If you have any problems with these switches it may be best to call an electrician. The diagram below is based on the video you watched above. The 4 ways are in between.
This 4 way switch diagram 1 shows the power source starting at the left 3 way switch. 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. A typical four way switch wiring diagram. Four way switch wiring diagrams. 3 way switch diagram 2 above shows the electricity source starting at the fixture. Wiring diagram 3 way switch with light at the end in this diagram the electrical source is at the first switch and the light is located at the end of the circuit.
Fixture between two three way switches. 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. Three wire cable runs between the switches and 2 wire cable runs to the light. With these diagrams below it will take the guess work out of wiring. What is a 3 way switch wiring diagram.
Power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch. This 4 way switch diagram 2 shows the power source starting at the fixture. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Unfortunately not all 3 way switches are wired the conventional way. The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. For example a long hallway or stairway might use a pair of three way.
The load wire is in one 3 way switch box and the line from the power source is in the other 3 way switch box. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wirenut. The white wire becomes the energized switch leg as indicated by using black or red electrical tape. 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. The diagrams below show the conventional wiring for 3 way switches. 3 way switch wiring diagram.
A 3 way switch wiring diagram is a simple drawing showing how to connect the wires to each of the four screws on the 3 way switch. The black and red wires between sw1 and sw2 are connected to the traveler terminals. 4 way switch schematics can also be used for intermediate switches.
Gallery of 3 Way Switch Internal Diagram
