Electrical Wall Outlet Wiring Diagram

The long slot on the left is the neutral contact and the short slot is the hot contact.

Electrical wall outlet wiring diagram.

Wiring a grounded duplex receptacle outlet. This wiring is commonly used in a 20 amp kitchen circuit where two appliance feeds are needed such as for a refrigerator and a microwave in the same location. To wire multiple outlets follow the circuit diagrams posted in this article. The black wire line and white neutral connect to the receptacle terminals and another 2 wire nm that travels to the next receptacle.

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A grounded contact at the bottom center is crescent shaped. The neutral wire from the circuit is shared by both sets. This repeats until the end of the chain. This is a standard 15 amp 120 volt wall receptacle outlet wiring diagram.

Most electrical codes now require outlets in kitchens and bathrooms to be on separate 20 amp gfci circuits. Wiring diagram for dual outlets. So before using the method we show here for how to wire a wall outlet in a kitchen or bathroom check with an electrical inspector. In the diagram below a 2 wire nm cable supplies line voltage from the electrical panel to the first receptacle outlet box.

For wiring in series the terminal screws are the means for passing voltage from one receptacle to another. Don t use this receptacle when no ground wire is. Any break or malfunction in one outlet will cause all the other outlets to fail.