How To Wire 2 Gfci Outlets Together

How to Wire Two GFCI Outlets Together: A Step-by-Step Guide

Meta Description: Learn how to safely and correctly wire two GFCI outlets together in this comprehensive guide. We cover the necessary tools, wiring diagrams, and troubleshooting tips for a successful installation.

Wiring two GFCI outlets together, often needed in kitchens, bathrooms, or outdoor spaces, might seem daunting, but with careful planning and execution, it's a manageable task for DIY enthusiasts. This guide will walk you through the process, ensuring your electrical work is safe and code-compliant. Always remember to turn off the power at the breaker before starting any electrical work. This is crucial for your safety.

Understanding GFCI Outlets and Their Purpose

Ground Fault Circuit Interrupters (GFCIs) are life-saving devices designed to protect against electrical shocks. They monitor the current flowing into and out of the outlet. If there's an imbalance (indicating a ground fault, like a short circuit or someone touching a live wire), the GFCI instantly cuts off the power. This protection is especially important in wet or damp locations. When wiring multiple GFCI outlets, only one needs to be a true GFCI; others can be downstream, relying on the upstream GFCI for protection.

Tools and Materials You'll Need

Before you begin, gather these essential tools and materials:

Voltage Tester: To verify the power is off. Never skip this step!
Wire Strippers/Cutters: For preparing the wires.
Screwdrivers: Phillips head and flathead, appropriate for your outlet boxes.
Electrical Tape: For insulating wire connections.
Wire Connectors (Wire Nuts): Suitable for the wire gauge you're using.
Two GFCI Outlets: Make sure they're compatible with your existing wiring.
Outlet Boxes: Ensure they are properly secured to the wall studs.
Romex Cable (or equivalent): The type of cable connecting your outlets.

Wiring Two GFCI Outlets Together: Step-by-Step

This setup involves one upstream GFCI outlet (the main one) and one downstream GFCI outlet (protected by the upstream unit).

Step 1: Turn Off the Power

Locate the circuit breaker controlling the outlets and switch it OFF. Double-check with your voltage tester to confirm the power is off.

Step 2: Connect the Upstream GFCI Outlet

Connect the black (hot) wire from the incoming power cable to the black (hot) screw of the upstream GFCI outlet.
Connect the white (neutral) wire from the incoming power cable to the white (neutral) screw of the upstream GFCI outlet.
Connect the bare copper (ground) wire from the incoming power cable to the ground screw of the upstream GFCI outlet.

Step 3: Connect the Downstream GFCI Outlet

Load (from Upstream): Connect the black (hot) wire from the "LOAD" terminals of the upstream GFCI outlet to the black (hot) screw of the downstream GFCI outlet.
Neutral (from Upstream and Downstream): Connect the white (neutral) wire from the "LOAD" terminals of the upstream GFCI outlet and the white (neutral) wire from the downstream GFCI outlet together using a wire nut. Connect this combined neutral wire to the white (neutral) screw on the downstream GFCI outlet.
Ground: Connect the bare copper ground wires from both GFCI outlets together using a wire nut. Connect this combined ground wire to the ground screw on the downstream GFCI outlet.

Step 4: Secure and Test

Securely mount both GFCI outlets in their boxes. Turn the power back on at the circuit breaker. Test both GFCI outlets by pressing the "TEST" button. The outlets should trip. Then, press the "RESET" button to restore power. Test all connected appliances to ensure everything works correctly.

Important Considerations:

Wire Gauge: Use wire nuts and wire appropriate for the gauge of your wiring.
Proper Grounding: Ensure all ground connections are secure and tight.
Local Electrical Codes: Familiarize yourself with your local electrical codes and regulations.

Troubleshooting

If either GFCI outlet trips frequently, there might be a ground fault somewhere in the circuit. Inspect all connections for loose wires or damage. If the problem persists, consult a qualified electrician.

This guide provides a basic understanding of wiring two GFCI outlets. Always prioritize safety and consult a qualified electrician if you're unsure about any aspect of this process. Remember, improper electrical work can be dangerous. Safety first!