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ABB CM-MPS.21S Phase Monitoring Relay

The ABB CM-MPS.21S is a cutting-edge phase monitoring relay designed for precise and reliable detection of phase failures, phase sequence errors, and asymmetry in 3-phase networks. With its compact design and robust features, this relay is an ideal choice for applications requiring minimal space and maximum performance. Key features include phase loss detection, incorrect phase sequence, and phase asymmetry monitoring, making it a versatile solution for various industrial and commercial settings.

Technical Specifications and Features

The ABB CM-MPS.21S boasts a wide input voltage range of 3 x 160–690V AC, ensuring compatibility with different power systems. Its single changeover contact output (1 c/o, SPDT) provides efficient control and signaling. The relay is equipped with a 250V AC / 6A output rating for resistive loads, making it suitable for a variety of applications. Additional features include DIN rail mounting for easy installation, screw terminals for secure connections, and adjustable asymmetry threshold and trip delay settings, allowing for customization to specific requirements.

Applications and Benefits

The ABB CM-MPS.21S is a versatile relay that finds applications in various industries. From industrial motor monitoring to HVAC equipment, pumping systems, and material handling equipment, this relay offers essential protection and reliability. Its compact design and high durability make it an excellent choice for electrical distribution panels and other space-constrained environments. With its precise monitoring capabilities and easy integration, the ABB CM-MPS.21S is a must-have for professionals looking to enhance the performance and safety of their electrical systems.