How To Run A 3 Way Switch - Online Wiring Diagram

Before you even start wiring you want to get the fixtures. Splice wires together and top with a wire connector.

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How to run a 3 way switch. You will likely need larger boxes than you already have if you are replacing a regular single pole switch. In this video we learn how to wire a 3 way switch system. If you have suggestions please leave them as well. Slide your mouse over it to see it change state requires javascript enabled. A light or lights can be controlled by more than one switch. Add an electrical box for the second 3 way switch in the basement.

Clamp the second electrical box to the wall and wire a three way switch following figure b. Run 2 2 wire conductors between the two boxes. Install larger electrical boxes. Of insulation from the end of each wire then connect the wires following figure b and photo 5. 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. Head to your fuse box and make sure there is no power coming to the room youre currently working in.

With wire strippers put single wires in the proper size groove in the handle 12 for no. Snap off the plaster ears and install the switch. Option 2 is for power into the first switch. Flip off power in the room youre working. This option actually requires you to run two romex lines between the lights. Option 1 is for power into the first switch wire to the lights and lastly wire from the light to the other switch.

Either way complete these five steps for 3 way light switch wiring. Its likely youll also need to replace the. Please leave a comment and a like if this video helped you. By convention electricians always run this cable to the switch box closest to the panel. Remove 34 to 1 inch of insulation. 3 way switches involve more cables so you will need a little more room to work.

Turn off the correct circuit at your electrical panel. Screw your two boxes and light fixture into place then gather your supplies. Twist the stripper or rotate it 360 degrees sliding the insulation off the wire as it breaks loose under the cutting blades. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. 3 way is the electricians designation for a single pole double throw spdt switch. The black line wire connects to the common terminal of the first 3 way switch.

Locate the switch box in which the cable coming from the service panel enters the switch circuit. Its likely youll also need to replace the. The usual practice in home construction is to use 3 way switches. A 3 way switch is shown below.

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