What role does a surge protector serve in electrical circuits?

A surge protector is designed specifically to protect electrical devices and circuits from damage caused by voltage spikes, which can occur during events such as lightning strikes or power outages. When a surge occurs, the device detects the excess voltage and redirects it away from the connected equipment, helping to prevent potential harm. This protective mechanism ensures that the devices remain safe and operational even when there are fluctuations in the electrical supply.

While improving energy efficiency, increasing voltage output, or preventing current flow are important aspects of electrical systems, they are not the primary function of a surge protector. The main focus of a surge protector is to manage excess voltage, making it an essential component for protecting sensitive electronics from damage.