120v Outlet Types

Providing both 120 and 240 volts these receptacles have four plug in slots two that are hot one that is neutral and one that is grounding.

120v outlet types. By these features there are four main types of outlets. Most important in the classification of outlets is voltage and the amperage they are suited for. And 220 2 wire 3 wire and four wire types. Because 15 amp receptacles can be used with 20 amp circuits most of the outlets you see in american homes are the standard 15 amp variety with two slots and a u shaped grounding hole.

For the most part you are going to see 120 volts 15 amp and 20 amp. Nema 6 15r is a modern 220 240v 250v 15 amp grounded receptacle. Most outlets are duplex receptacles with two places to plug in electrical devices. Nema 5 15r is a modern 120v 125v 15 amp grounded receptacle.

Most homes in the u s. Nema 5 20r is a modern 120v 20 amp grounded receptacle. Are wired with a combination of 15 amp and 20 amp 120 volt circuits. The modern 120 volt power outlet has three holes.

Two parallel rectangular slots one connected to the live wire and one connected to the neutral wire and a round hole for the ground wire. 20 amp receptacles have a horizontal slot branching off one of the vertical slots. The best option is to purchase a duplex outlet that has both types of connectors. These outlets are the ones you re most likely have in your house.