Different Types of Electrical Outlets & What They're For

In this article, Mr. Electric explains the different types of electrical outlets and what they’re used for. As a premier electrical service, we understand various components of an electrical system inside and out. Keep reading to learn all about the various types of electrical outlets and their applications in your home.

• Standard 120-Volt Outlets

These are the most common outlets in U.S. homes. The 15-amp outlet has two vertical slots and a round grounding hole and is suitable for lights, TVs, computers, and small appliances. A 20-amp outlet looks similar but has a small horizontal slot, indicating it can handle larger loads like kitchen appliances, power tools, or window AC units. They're ideal for rooms where you expect higher energy demands.

• GFCI Outlets (Ground Fault Circuit Interrupter)

GFCI outlets are designed to protect you from electrical shock, especially in areas with water. These outlets monitor the flow of electricity and shut off power if they detect a ground fault or imbalance. You'll find GFCIs in bathrooms, kitchens, laundry rooms, garages, and outdoor areas. They have “Test” and “Reset” buttons on the face. If your home lacks GFCIs in wet areas, call a licensed electrical service to undertake upgrades.

• AFCI Outlets (Arc Fault Circuit Interrupter)

While GFCIs protect against electrical shock, AFCI outlets are designed to prevent electrical fires. They detect dangerous arcing and shut down power to prevent fire. AFCI protection is now required in many areas of new construction, especially in bedrooms and living rooms. These outlets help ensure your home stays safe from hidden wiring issues.