Electric Dryer Plug Wiring Diagram

You may find yourself with either a 3 wire or 4 wire electric dryer or a 3 wire or 4 wire outlet.

Electric dryer plug wiring diagram.

Pull the wire stripper toward the end of the wire to cut off the insulation. See an electric dryer installation with a typical 240 volt electric power cord wiring system. The nec requires that dryers have a dedicated circuit with a minimum of 30 amps. This article will explain what options you have to get your dryer wired and running.

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. Work on 1 wire at a time or else you won t remove the insulation as well. Electrical wiring for a dryer power cord has a typical 240 volt electric power cord with 3 wire and 4 wire wiring configurations many people may experience the situation of trying to make a older dryer work with an new four wire receptacle. Below each diagram i will cover some information concerning the difference between a 3 prong and a 4 prong dryer outlet.

Strip 1 2 in 1 3 cm of insulation off the ends of each wire. One of the updates in the 1996 national electric code was to require grounding on 220 volt circuits such as dryer outlet wiring. The diagrams below are showing a basic concept on how to wire a dryer outlet. 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. Wiring a dryer wiring a 240v dryer. Wiring for a 4 prong dryer receptacle. After this update all dryer receptacles are required to have four wires instead of three.