What is the purpose of a GFCI outlet?

The primary purpose of a GFCI (Ground Fault Circuit Interrupter) outlet is to protect against electrical shocks. This type of outlet is designed to monitor the flow of electricity in a circuit. If it detects an imbalance, indicating that electricity is flowing in an unintended path—such as through water or a person—it quickly shuts off the power to prevent serious injury or death from electrical shock.

GFCI outlets are especially important in areas where water is present, such as kitchens, bathrooms, and outdoor spaces, as the risk of electrical shock is significantly higher in these environments. By interrupting the circuit almost instantaneously when a ground fault is detected, GFCI outlets provide a critical layer of safety in electrical installations, ensuring that individuals are less likely to experience electrical hazards.

The other options do not accurately represent the function of a GFCI outlet. For instance, providing extra power to heavy appliances does not relate to the protective function of a GFCI. Similarly, while increasing efficiency and regulating circuit installations are important aspects of electrical systems, they are not the primary roles of a GFCI outlet.