The main job of a surge protector system is to protect electronic devices from “surges.” So, if you’re wondering what a surge protector does, the first question is, “What are surges?” And, “Why do electronics need to be protected from them?”
A power surge is an increase in voltage significantly above the designated level in a flow of electricity. In normal households and offices, the standard voltage is 120 Volts. If the voltage rises above 120 volts, there is a problem, and a surge protector helps to prevent that problem from destroying your electrical devices.