Which of the following is considered an electrical protective device?

The correct answer includes all listed options: fuses, circuit breakers, and ground-fault circuit interrupters, as they are all considered electrical protective devices.

Fuses are designed to protect electrical circuits by melting and breaking the circuit when there is an overload or fault condition, thereby preventing damage to wiring and equipment.

Circuit breakers serve a similar purpose but can be reset after tripping due to overload or short circuit conditions, providing a reusable safety mechanism that protects against electrical faults.

Ground-fault circuit interrupters (GFCIs) are specialized devices that protect against electrical shocks by detecting imbalances in electrical current between the hot and neutral wires. If a ground fault is detected, the GFCI interrupts the circuit to prevent electric shock hazards.

This collective functionality makes all three options integral parts of electrical safety, ensuring that systems operate safely under abnormal conditions.