Electric Dryer Plug Wiring Diagram

Strip 1 2 in 1 3 cm of insulation off the ends of each wire.

Electric dryer plug wiring diagram.

See an electric dryer installation with a typical 240 volt electric power cord wiring system. Wiring for a 4 prong dryer receptacle. This article will explain what options you have to get your dryer wired and running. There really isn t a lot of difference in the wiring theory other than some changes in electrical codes throughout the years.

A 4 prong dryer outlet is wired as a 120 240 volt circuit. Lets look a how the electric dryer is wired and what to do if your cord does not match the plug. You may find yourself with either a 3 wire or 4 wire electric dryer or a 3 wire or 4 wire outlet. After this update all dryer receptacles are required to have four wires instead of three.

The 120 volt service is for the dryer s timers sensors and other electronics while the 240 volt service supplies power to the heating elements. The nec requires that dryers have a dedicated circuit with a minimum of 30 amps. Grip the last 1 2 inch 1 3 cm of the wire in the jaws of the wire stripper and squeeze the handles together. The code requirement doesn t apply to houses built before 1996 though.

Pull the wire stripper toward the end of the wire to cut off the insulation. The diagrams below are showing a basic concept on how to wire a dryer outlet. Work on 1 wire at a time or else you won t remove the insulation as well. One of the updates in the 1996 national electric code was to require grounding on 220 volt circuits such as dryer outlet wiring.