1SVR730784R2300 ABB - CM-PSS.31S

The CM-PSS.31S is a three-phase monitoring relay designed by ABB to ensure the reliable operation of three-phase systems. This device continuously monitors the phase sequence, phase failure, overvoltage, and undervoltage in three-phase networks. It features two changeover (c/o) contacts for signaling fault conditions, enabling prompt corrective actions. The CM-PSS.31S offers an adjustable time delay from 0.1 to 30 seconds, preventing nuisance tripping due to transient voltage fluctuations. It is suitable for monitoring three-phase systems with a nominal voltage of 3x380VAC (L1-L2-L3). This monitoring relay helps to protect sensitive equipment from damage caused by voltage imbalances or phase-related issues. Its compact design allows for easy installation in control panels and other electrical enclosures. The CM-PSS.31S enhances system reliability and minimizes downtime by providing early detection of potential problems. It is an essential component for industrial automation, power distribution, and motor control applications. By continuously monitoring the three-phase power supply, the CM-PSS.31S contributes to the overall efficiency and safety of electrical systems.