What is the primary function of a surge protector?

The primary function of a surge protector is to protect against voltage spikes. Surge protectors are designed to divert excess voltage away from sensitive electronic devices and equipment, reducing the risk of damage when there is a sudden increase in electricity, such as from a lightning strike or power surge. They work by temporarily redirecting the excess voltage to a grounding wire, thereby safeguarding the connected devices from potential harm.

This function is crucial in maintaining the longevity and performance of electronic appliances, which can be severely affected by voltage fluctuations. In contrast, enhancing circuit performance, regulating current flow, and increasing electrical efficiency pertain to other aspects of electrical systems and do not align with the specific role that surge protectors play in safeguarding equipment from unexpected voltage levels.