15 Amp Plug Wiring Diagram

Wiring a 15 amp plug may seem overwhelming for beginners; however, it is a relatively simple process that can be done by anyone with basic electrical knowledge. Electrical appliances that require less than 15 amps of electricity can be safely powered by a 15 amp plug. In this article, we will walk you through the process of wiring a 15 amp plug step-by-step.

Things You Will Need:

Before you begin wiring your 15 amp plug, you will need the following tools and materials:

Tools Materials
Wire strippers 15 amp plug
Needle-nose pliers Wire cutter
Screwdriver Electrical tape
Multimeter Wire (size AWG 14 or 16)

Step-by-Step Guide:

Step 1: Cut Power Supply

For safety purposes, make sure to turn off power supply to the outlet by turning off the circuit breaker or unplugging the outlet. This will ensure that you do not get electrocuted while working on your wiring project.

Step 2: Strip the Wires

Strip off approximately 1 inch of outer sheathing from the end of the power cord to expose the three wires inside. Strip off approximately 1/4 inch of insulation from the tip of each of the three wires using wire strippers.

Step 3: Connect the Wires to the Plug

Insert each of the three wires into their respective slots on the plug. The white wire should be inserted into the silver slot, the black wire into the gold slot, and the green wire into the green slot. Use a screwdriver to tighten the screws that hold the wires in place.

Step 4: Inspect the Connections

After connecting the wires to the plug, inspect the connections to ensure that they are secure and tight. Any loose connections can result in an electrical hazard.

Step 5: Test the Plug

Use a multimeter to test the plug for continuity. Set your multimeter to the ohm setting, insert the probes into the plug slots, and check if you get a reading when the probes touch the wires. If the plug is correctly wired, you should get a reading of zero ohms.


Q1: Which wire should go where in a 15 amp plug?

A: The black wire should go into the gold slot, the white wire into the silver slot, and the green wire into the green slot.

Q2: What is the difference between 15 amp and 20 amp plugs?

A: The difference between a 15 amp and 20 amp plug is the amount of electrical current they can safely handle. A 15 amp plug is designed to handle a maximum of 15 amps of electricity, while a 20 amp plug is designed to handle a maximum of 20 amps of electricity.

Q3: How can I tell if my plug is wired correctly?

A: You can test your plug for continuity using a multimeter. If the multimeter registers zero ohms of resistance, then the plug is wired correctly.

Q4: Can I use a 15 amp plug for a 20 amp appliance?

A: No, you cannot use a 15 amp plug for a 20 amp appliance. This is because a 20 amp appliance draws more electrical current than a 15 amp plug can handle, which can result in overheating and electrical hazards.

Q5: What should I do if I am unsure about wiring my 15 amp plug?

A: If you are unsure about wiring your 15 amp plug, it is best to consult a licensed electrician. Attempting to wire your plug without the proper knowledge and experience can result in serious electrical hazards.

Wiring a 15 amp plug is not as complicated as it may seem. With the right tools and basic electrical knowledge, anyone can safely and successfully wire their own plug. Ensure that power is turned off when wiring to prevent electrical shock and fire hazards. Following the steps outlined in this article will guarantee that your wiring is done correctly and safely.