GFI Outlets vs. GFCI Outlets: The Differences Explained

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What are GFI and GFCI outlets?

Let’s start with the basics: GFI stands for Ground Fault Interrupter, and GFCI stands for Ground Fault Circuit Interrupter.

At their core, both devices serve the same function: to protect against dangerous ground faults which occur when electricity escapes its intended path and seeks an alternate route, potentially through a person. Ground faults often happen when electrical devices come into contact with water. This makes bathrooms, kitchens, and outdoor areas prime candidates for these safety devices.

When a ground fault occurs, GFI and GFCI outlets automatically shut off power to prevent electrical shock. They do this by constantly monitoring the amount of current flowing through a circuit. If they detect an imbalance, they immediately cut the power. This life-saving action can happen in mere milliseconds to prevent injury or even death from electric shock.

What makes them alike

In terms of functionality, there’s little difference between a GFI and a GFCI outlet. Both devices detect ground faults and immediately shut off the electricity to stop the flow of dangerous current. Whether you're calling it a GFI outlet or a GFCI outlet, it’s doing the same job of protecting you and your home from potential electrical hazards.

In addition to preventing shocks, GFI and GFCI outlets can also protect your electrical system from damage. For example, if you have faulty wiring or a malfunctioning appliance, these outlets can detect the issue and shut down power to avoid further harm.