Which of the following is NOT a common type of GFCI used in residential construction?

GFCI, or Ground Fault Circuit Interrupter, devices are crucial for protecting people from electrical shock by monitoring the flow of electricity and detecting imbalances. The common types of GFCIs used in residential construction include GFCI breakers, which are installed in the electrical panel and protect an entire circuit; GFCI receptacles, which are outlets that provide individual protection for specific locations like bathrooms or kitchens; and stand-alone GFCIs, which are portable devices that can be plugged into outlets to provide additional safety.

GFCI fuses, however, are not a recognized type of GFCI used in residential setups. Fuses typically serve as overcurrent protection devices rather than ground fault protection. The lack of GFCI fuses in practice explains why this option is not part of the common types in residential construction. This understanding is vital because it highlights the methods in which electrical safety is managed in homes, ensuring compliance with safety codes and preventing potentially hazardous situations.