Electric Dryer Plug Wiring Diagram

One of the updates in the 1996 national electric code was to require grounding on 220 volt circuits such as dryer outlet wiring.

Electric dryer plug wiring diagram.

Wiring for a 4 prong dryer receptacle. This article will explain what options you have to get your dryer wired and running. After this update all dryer receptacles are required to have four wires instead of three. Wiring a dryer wiring a 240v dryer.

The diagrams below are showing a basic concept on how to wire a dryer outlet. You may find yourself with either a 3 wire or 4 wire electric dryer or a 3 wire or 4 wire outlet. The code requirement doesn t apply to houses built before 1996 though. A 4 prong dryer outlet is wired as a 120 240 volt circuit.

The nec requires that dryers have a dedicated circuit with a minimum of 30 amps. Strip 1 2 in 1 3 cm of insulation off the ends of each wire. Lets look a how the electric dryer is wired and what to do if your cord does not match the plug. 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.

There really isn t a lot of difference in the wiring theory other than some changes in electrical codes throughout the years. 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. Below each diagram i will cover some information concerning the difference between a 3 prong and a 4 prong dryer outlet. See an electric dryer installation with a typical 240 volt electric power cord wiring system.