A 4 prong 30amp 250v dryer power cord will usually cost around 15 to 25 dollars if you buy it yourself.
Dryer power cord 3 prong 4 wire.
In recent years most dryer manufacturers have adopted the 4 prong electrical cord over the dates 3 prong model.
Therefore the dryer s neutral was tied to the ground connection on the metal case of the dryer.
The key difference in the wiring configuration between 3 prong and 4 prong cords is that with the older setup the 3 prong cord has only two hot wires and one neutral wire there is no separate ground wire.
The definitively correct way is to run a ground wire to the socket location which you can without needing to follow or replace the present hot hot neutral wiring since the 2014 code cycle iirc and toss that 3 wire socket in the trash and use a 4 wire cord to a 4 wire plug to a correctly wired 4 wire socket.
Purchase 4 prong dryer cord.
If you will be calling an electrician to install the cord it may be cheaper for you to buy the 4 prong dryer cord beforehand.
However in new construction the installation of kitchen ranges and clothes dryers requires a 4 wire cord and plug.
The more recent 4 prong dryer cords feature two hot wires a neutral wire and a ground wire.
Most older homes are wired for the 3 wire outlet as shown below.
This may save you around 40 dollars depending on what the electrician will charge for a new power cord.
This eliminates the possibility for a ground current traveling to the machine as it features a separate return path for unused power.
The 4th wire in that cord and plug configuration is an equipment grounding conductor.
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.
This equipment grounding conductor is the missing wire in the older 3 wire configurations.
Purchase 3 prong dryer cord.
In the first section i will be showing you how to connect a dryer cord that matches your 3 prong or 4 prong outlet.
I will cover both situations.
The 3 wire connection is now outdated where current dryers are wired with a 4 wire cable.
While they can both effectively power a traditional dryer the 4 prong model contains an extra grounding wire as a preventive measure.
Electric dryers can use cords with 3 prong or 4 prong plugs designed to match either 3 slot or 4 slot outlets.