#DRYER PLUG ADAPTER CODE#

Existing homes may still use 3-prong outlets. But even with the correct adapter, if you were going to use a 30A circuit, you would need a different EVSE that allows charging at 24A.

#DRYER PLUG ADAPTER CODE#

The National Electrical Code currently requires 4-prong dryer outlets in all new home construction. The adapter in the picture would not fit into a dryer outlet, which are typically NEMA 14-30.

Insert the two test leads (one each) into the two 'hot' slots of the outlet. A 3-prong dryer cord was the standard for dryers prior to 2000.

Plug the two tester leads into the multimeter.Locate the circuit breaker for the 220 volt dryer outlet in the main circuit panel, which is typically located in the garage or utility room.That fourth prong is a ground wire and is there for better electrical safety. My New Home Needs a Dryer Plug Adapter Congratulations! What's up is that in 1999 the National Electric Code instituted a change, requiring all new dryers and home dryer receptacles to have 4 prongs instead of the older 3- prong style. Just so, is there an adapter for a 4 prong dryer? It requires only simple tools, and the replacement cord usually costs around $20. Therefore, the dryer's neutral was tied to the ground connection on the metal case of the dryer.Īlso, can you convert a 4 prong dryer to 3 prong? It is fairly easy and inexpensive to remove the four- prong cord on a new dryer and replace it with a three- prong cord to match your existing three-slot outlet. 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.

This has the potential to allow a current to find its way onto the ground wire.Īccordingly, what is the difference between a 3 prong and 4 prong dryer cord? In a 3- prong outlet, the ground and neutral wires are contained in the same prong. The switch to a 4- prong outlet was due to a flaw in the 3- prong outlet design.

Dryer plug adapter