One of the primary safety features of relays is overcurrent protection. Electrical circuits can be exposed to excessive currents, which may be caused by short circuits, overloads, or other faults. Overcurrent relays are designed to detect these excessive current levels and interrupt the circuit by tripping the relay, thus preventing overheating and potential damage to the equipment. This feature helps avoid catastrophic failures and prolongs the lifespan of electrical devices.

    Undervoltage and Overvoltage Protection

    Another important safety function of relays is the monitoring of voltage levels. Both undervoltage and overvoltage conditions can be detrimental to electrical equipment. An undervoltage condition occurs when the voltage drops below the required level, leading to equipment malfunction or failure. Conversely, overvoltage can damage sensitive components or cause overheating. Relays equipped with undervoltage and overvoltage protection can detect these fluctuations and disconnect the circuit, preventing long-term damage to the system and ensuring the safe operation of connected equipment.