A surge arrester, or surge protector, is an electrical device designed to safeguard electronic equipment from sudden voltage spikes and surges. It works by intercepting excessive electrical energy and redirecting it to the ground, shielding connected devices from damage. Surge arresters remain inactive during normal voltage flow but become active during spikes, conducting excess energy to the ground. They are typically installed at entry points of electrical systems, like distribution panels, to protect the entire system. Surge arresters come in various types tailored for different applications, from industrial machinery to residential use. The surge arrestor market size was USD 1,689.7 million in 2023 and is anticipated to reach USD 2,560.5 million in 2033, growing at a rate of 4.3% from 2024 to 2033.