What does GFCI stand for?

GFCI stands for Ground Fault Circuit Interrupter. This device is crucial for electrical safety, particularly in areas where there is a higher risk of moisture, such as bathrooms and kitchens. It is designed to quickly shut off power to a circuit when it detects an imbalance of electrical current, which may indicate that current is leaking to the ground. This functionality helps prevent electrical shocks and potential fires, making it a vital component of modern electrical systems.

The other options refer to terms that do not accurately describe the function or purpose of the GFCI. General Frequency Control Interface, for example, is not related to electrical safety but rather more aligned with telecommunications or data signal management. Ground Filter Circuit Insulator and Grounded Fault Current Indicator suggest concepts that are not standard terms in electrical safety, contributing to the confusion. Thus, the definition of GFCI as Ground Fault Circuit Interrupter stands correct in the context of electrical safety devices.