Which of the following is NOT an electrical protective device?

The rationale behind identifying a power strip as not being an electrical protective device lies in its primary function and design. Power strips mainly serve to provide multiple outlets for electrical devices to plug into, allowing them to draw power from a single wall socket. While some power strips may include features such as surge protectors that can offer a degree of protection against voltage spikes, they are not classified as protective devices on their own.

In contrast, fuses, ground-fault circuit interrupters, and circuit breakers are specifically engineered to protect electrical circuits and equipment from overload and faults. Fuses melt when the current exceeds safe levels, interrupting the circuit; ground-fault circuit interrupters rapidly cut off power in situations where there is a risk of electrical shock due to ground faults; and circuit breakers can be reset after they trip due to an overload or short circuit. Each of these devices plays a direct role in preventing electrical hazards and ensuring safety by responding automatically to faults, which distinguishes them from a power strip that lacks inherent protective capabilities.