The black and red wires between sw1 and sw2 are connected to the traveler terminals. Interested in a 4 way switch wiring diagram.
Wiring A 3 Way Switch
3 way switch wiring options. Connect the black insulated wire to the shunt or common terminal screw of the switch once again the common screw terminal is the different colored screw from the rest of those on the switch. 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. The cable should also have a ground wire or a total of four wires in the cable. Connect all ground wires as previously described if not already completed. Three wire cable runs between the switches and 2 wire cable runs to the light. The three way switch is a variation of the standard single pole switch which controls a light only from one locationa third type is the four way switch which is used in conjunction with two three way switches to control lighting from more than two locationsthis configuration may be used in open plan homes or in large kitchens or great rooms where a central bank of lighting fixtures might.
The power wire the neutral wire and the traveller or switch wire. 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. So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. Connect 3 wire cable in the second switch box to the switch. With these diagrams below it will take the guess work out of wiring.
This might seem intimidating but it does not have to be. Three way switches require a three wire cable. Wiring diagrams for 3 way switches the key to wiring 3 way switches the power feed and the switch leg leading to the fixture s typically one at each switch location are attached to the screw terminal found at one end of the switch by itself three way switch diagrams fully explained. For example they can be arranged so that the feed cable runs to the first three way switch then to the light fixture box then to the second three way switch. Run new cable romex between the 3 way switches. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.
Take a closer look at a 3 way switch wiring diagram. Three way switches can be wired in a number of different ways depending on where they are located relative to the light fixture in the circuit cable runs. This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light 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 switches. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. The system also requires three way switches.
The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch. Typical 3 way switch wiring nm cable in the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.
Gallery of 3 Way Switch Wiring Options
