ABB CM-MPS Series Multifunctional Three-Phase Monitoring Relays

Product Introduction

The ABB CM-MPS series is a range of multifunctional three-phase monitoring relays designed to provide comprehensive monitoring and protection for three-phase electrical systems. These relays are capable of detecting various electrical parameters such as overvoltage, undervoltage, phase imbalance, phase sequence, and phase failure, ensuring the safe and reliable operation of electrical equipment.

Technical Specifications

  • Rated Control Power Supply Voltage/Three-Phase Measurement Voltage: 300-500 V AC, 50/60 Hz
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Description
  • Output: 2 c/o (SPDT) contacts
  • Contact Rating: 250 V / 4 A
  • Adjustable Threshold Settings: For overvoltage, undervoltage, and phase imbalance
  • Phase Sequence Monitoring: Optional
  • ON/OFF Trip Delay: Adjustable from instantaneous to 30 seconds (0.01-30 s)
  • Connection Technology: Screw connection with dual-chamber cage terminals
  • Operating Temperature: -20°C to +70°C (or wider, depending on specific design)
  • Storage Temperature: -40°C to +85°C
  • Humidity Resistance: Designed to operate in environments with varying humidity levels
  • Protection Class: Generally IP20 or higher, preventing finger contact and ingress of solid objects larger than 12mm

Functional Characteristics

  • Comprehensive Monitoring: Monitors all phases for overvoltage, undervoltage, phase imbalance, phase failure, and phase sequence.
  • Adjustable Threshold Values: Allows users to set specific threshold values for various parameters to suit their application requirements.
  • Optional Phase Sequence Monitoring: Provides flexibility in monitoring phase sequence, which is crucial for certain applications.
  • Adjustable Trip Delay: Enables users to set the trip delay time according to their needs, preventing unnecessary trips due to transient conditions.
  • High Reliability: Built with industrial-grade components to ensure stable operation in harsh environments.
  • Easy Installation and Maintenance: Features a user-friendly design for quick installation and maintenance.
  • Visual Indication: Equipped with an indicator light for easy observation of relay status.

Application Scenarios

  • Industrial Automation: Used in manufacturing processes, machinery, and equipment for monitoring and protecting three-phase motors and other electrical devices.
  • Power Generation and Distribution: Applied in power plants, substations, and distribution systems for monitoring and controlling the quality of electrical power.
  • Building Automation: Integrates into building management systems for monitoring and controlling HVAC, lighting, and other electrical systems.
  • Water Treatment and Environmental Monitoring: Monitors and controls water treatment processes and environmental parameters in water treatment and environmental monitoring systems.
  • Oil and Gas: Deployed in remote oil and gas facilities for power generation and control, ensuring reliable operation of electrical equipment.
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