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MOV blocks are essential components for maintaining the integrity and reliability of electronic and electrical systems, as they can prevent costly damage and downtime caused by voltage surges. They are commonly employed in various applications, from protecting household appliances and computers to safeguarding industrial equipment and critical infrastructure.

A metal oxide arrestor (MOA) is an electrical device that is designed to protect electrical systems and equipment from surges caused by lightning, switching operations, and other sources of overvoltage. The MOA technology utilizes a mov arrester element that provides low impedance paths for high voltage surges, thereby diverting the excess energy to the ground.