What’s the Difference Between 3-Prong and 4-Prong Dryer Outlets?
Before the 2000s, it was typical for dryers to draw power from only 3-prong dryer outlets. However, 4-prong outlets are more common today. Knowing the difference between the two is important, especially if you are moving to a new home — you may have a dryer with a cord that doesn’t work with the home’s available outlet, so it’s best to familiarize yourself with the different types and ensure your dryer cord is compatible.
3-Prong Dryer Outlets
As mentioned above, it was common for homes in past times to have 3-prong dryer outlets. Two of the prongs feature a positive wire, while the remaining prong is used to connect a neutral wire that also serves as a grounding wire.
It has since been determined that 3-prong outlets are more likely to result in shocks due to water from laundry. In fact, in most jurisdictions, you are no longer allowed to even install a 3-prong dryer outlet, as it doesn’t meet current code requirements. However, if you are living in a home that still contains a 3-prong dryer outlet, it is not required that you upgrade.
4-Prong Dryer Outlets
It wasn’t until 1996 that the NEC began introducing 4-prong dryer outlets to American homes. These were established because it was determined that a 240-volt dryer should use 4-prong outlets so that both the grounding pathway and neutral electrical pathway are carried by separate wires. Once again, because laundry spaces are no stranger to water, there’s a greater risk of shocks occurring as a result. However, an entirely separate ground pathway decreases that risk in a 4-prong outlet.
What to Do if You Need to Change Your Outlet
Fortunately, you don’t have to get rid of your dryer if you realize the cord isn’t compatible with the outlet present. There are rather affordable cords available on the market that can easily be changed with a Phillips screwdriver. It can be a simple project for most people to tackle themselves.
Although you don’t need to upgrade your outlet from a 3-prong to a 4-prong, it’s a great idea. Whether you want to switch for increased safety or you need to in order to set up your existing dryer, Lon Lockwood Electric specializes in outlet upgrades you can trust. It is crucial that any electrical project be handled by a professional. Our team of dedicated technicians will be there to assist you in any way you need with our qualified services.
Ready to upgrade your 3-prong dryer outlet to a 4-prong outlet? Call Lon Lockwood Electric today at 585-766-4702 or reach out to us online to get started!