At its core, relay circuit protection is designed to protect electrical circuits from damage caused by short circuits, overloads, and other abnormal conditions. A relay is a type of electrical switch that automatically opens or closes a circuit when certain predefined conditions are met. These conditions often include excessive current, voltage imbalances, or faults in the electrical network. By detecting these faults and responding quickly, relay circuits help prevent costly damage to electrical components and reduce the risk of fires, equipment failures, and system downtime.