Understanding Overload Relay： Essential Protection for Electrical Systems

In the world of electrical engineering, safety is paramount. Whether in industrial machinery, household appliances, or commercial infrastructure, protecting electrical equipment from damage due to overcurrent or overload conditions is critical. One of the most vital components in ensuring this protection is the overload relay. Overload relays are widely used in various electrical applications, particularly in motor circuits, where they serve as a safeguard against potential damage caused by excessive current. This article explores the function, types, and significance of overload relays in modern electrical systems.