Diagram for Wiring a Dryer Plug or Dryer Outlet


Hey, in this article we are going to know the procedure for wiring a dryer outlet or dryer plug. Also, we will see the dryer outlet wiring diagram. Here, you will know about both 3 prong dryer outlets and 4 prong dryer outlets. Here, also we will see the connection of the circuit breaker with the outlet. First, let's see the terminal diagram of each outlet.


3 Prong Dryer Outlet Terminal Diagram


3 prong dryer outlet terminals diagram



Here, you can see the terminals of a 3 prong dryer outlet. It has a total of 3 prongs to plug the dryer. The lower middle is for the grounding connection. So, it is to be connected to the ground or earth. Another two prongs are for Line or terminals. These two terminals are to be connected to a double pole circuit breaker. Each of these terminals are carrying 120V. So the total of the outlet is 240V. One 120V plug is used to supply the power to the heater and motor and another is for simple lighting, indicating, etc.



4 Prong Dryer Outlet Terminal Diagram


4 prong dryer outlet terminal diagram



Here, you can see the terminals of a 4 prong dryer plug dryer outlet. It has a total of four terminals. The lower middle terminal is for neutral. And the upper middle terminal is for grounding or earthing. The lower middle terminal is to be connected to the neutral of the power supply directly and the upper-middle terminal is to be connected to the earth. Also, note that here, neutral and ground must be separated and use different colour codes. Both side horizontal prongs are for line or hot terminals. Each of these also carrying 120V. So the total output is 240V.


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Wiring diagram of Dryer Outlet - 3 Prong


3 prong dryer outlet wiring diagram, wire a dryer outlet, dryer plug wiring connection



Here, you can see the lower middle terminal is connected to the ground with a green wire. And both hot terminal is connected to the double pole circuit breaker. A circuit breaker must be used with the dryer outlet as it provides protection against short circuit fault and overload fault. Mostly, 2 pole 30Amp breaker is used with a dryer outlet.

If we see the connection procedure,
  1. Connect the lower middle terminal to the earth or ground
  2. Connect both of the hot terminals to the circuit breaker as shown in the above diagram.
  3. Here, for a better understanding purpose, we have shown the input terminals of the breaker. In general, the breaker is placed in a power panel.

Dryer Outlet Wiring - 4 Prong


4 prong dryer outlet wiring diagram, dryer outlet connection



Here, you can see the lower middle terminal is connected to the neutral with a white wire. Both yellow and white can be used for the neutral. The upper-middle terminal is connected to the ground or earth with a green wire. Both of the hot terminals are connected to the double pole circuit breaker.

If we see the connection procedure,
  1. Connect the lower middle terminal to the neutral with a white or yellow wire.
  2. Connect the upper-middle terminal to the ground or earth with a green wire.
  3. Connect the live terminals to the circuit breaker as shown in the above figure.

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Diagram for Wiring a Dryer Plug or Dryer Outlet Diagram for Wiring a Dryer Plug or Dryer Outlet Reviewed by Author on 10/22/2021 Rating: 5
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