What is the primary function of a surge protector?

The primary function of a surge protector is to protect electrical equipment from voltage spikes. Voltage spikes, or surges, can occur due to various reasons, such as lightning strikes, power outages, or fluctuations in the electrical supply. These surges can cause significant damage to sensitive electronic devices by exceeding the voltage levels they are designed to handle.

Surge protectors work by diverting the excess voltage away from the equipment, either by grounding it or by using components like metal oxide varistors (MOVs) that absorb the surge. This protects devices such as computers, televisions, and other electronics from potential damage, ensuring they operate safely and effectively. Other options, such as enhancing performance or providing additional power, do not align with the main purpose of a surge protector, as its primary role is strictly protective. Monitoring electrical usage is also not part of the surge protector's functionality.