ABB CM-MPS Series Multifunctional Three-Phase Monitoring Relays

Description

Technical Specifications

Core Monitoring & Electrical Specifications

Physical & Mechanical Specifications

• Enclosure Width: 22.5 mm (standard for all models)
• Dimensions (H×W×D): 85.6 mm × 22.5 mm × 115 mm (typical)
• Net Weight: 0.138–0.149 kg (push-in); 0.140–0.150 kg (screw terminals)
• Mounting: DIN rail (IEC/EN 60715, 35×7.5 mm); tool-free snap-on
• Mounting Position: Any orientation
• Terminal Technology: Easy Connect push-in (P/S suffix) or double-chamber cage screw terminals (standard)
• Terminal Cross-Section: 2×2.5 mm² (2×14 AWG) with ferrules
• Enclosure Protection: IP50 (housing); IP20 (terminals)
• Housing Material: Flame-retardant thermoplastic (UL 94 V-0)
• Mechanical Durability: 30,000,000 operations
• Electrical Durability (AC-12, 230 V, 4 A): 100,000 switching cycles

Environmental Specifications

• Operating Temperature: -25 °C to +60 °C
• Storage Temperature: -40 °C to +85 °C
• Relative Humidity: 5–95 % RH (non-condensing)
• Vibration Resistance: IEC 60068-2-6 (10–2000 Hz, 2 g rms)
• Shock Resistance: IEC 60068-2-27 (15 g, 11 ms half-sine)
• EMC Immunity: IEC/EN 61000-6-2
• EMC Emission: IEC/EN 61000-6-3

Compliance & Certifications

• Standards: IEC/EN 63000, IEC/EN 60255-27, UL 508, CAN/CSA C22.2 No.14
• Certifications: CE, UL, cULus, CSA
• Overvoltage Category: III
• Pollution Degree: 2

Functional Features

1. Comprehensive Three-Phase Monitoring

• All-Critical Anomalies Covered: Detects phase failure, phase unbalance (2–25 %), overvoltage, undervoltage, incorrect phase sequence, and interrupted neutral (selected models) to prevent motor burnout and equipment damage.
• Adjustable Thresholds: Overvoltage, undervoltage, and phase unbalance trip points are user-configurable within the rated range, matching specific application requirements.
• Automatic Phase Sequence Correction: Selected models (e.g., CM-MPS.23/43P) correct phase sequence errors automatically, eliminating the need for manual wiring adjustments and reducing installation time.
• 200 ms Start-Up Delay: Prevents false tripping during system power-up by ignoring transient voltage fluctuations.

2. Flexible Timing & Output Configuration

• Dual Tripping Delay Modes: Selectable “ON delay” (delays protection activation) or “OFF delay” (delays contact reset) with a range of 0.1–30 s; instantaneous (0 s) mode is available for critical applications.
• Configurable Output Contacts: Contacts can be set as 2×1 c/o (separate signals for over/undervoltage and phase issues) or 1×2 c/o (common fault signal), enabling integration with PLCs, contactors, or alarm systems.
• Sealable Adjustment Cover: Optional transparent cover protects potentiometers and switches from unauthorized changes, ensuring configuration integrity in industrial settings.

3. Robust Design & Ease of Installation

• Integrated Supply/Measuring Circuit: Eliminates separate power wiring, reducing installation complexity and potential wiring errors.
• Maintenance-Free Terminals: Easy Connect push-in terminals (P/S suffix) enable tool-free, secure connections with high vibration resistance; screw terminals offer double-chamber cage design for reliable clamping.
• Compact DIN-Rail Mount: 22.5 mm width saves panel space, allowing dense mounting in control cabinets; tool-free snap-on installation speeds up deployment.
• Wide Frequency Compatibility: Operates on 50/60 Hz mains and 400 Hz systems (selected models), suitable for industrial and marine applications.

4. Enhanced Reliability & Safety

• High EMC Immunity: Complies with IEC/EN 61000-6-2, ensuring operation in electrically noisy environments (e.g., near variable frequency drives).
• Flame-Retardant Enclosure: UL 94 V-0 rated material prevents fire spread in case of internal faults, enhancing system safety.
• Defined Short-Circuit Protection: Fuse ratings for NC/NO contacts are specified, simplifying system design and ensuring compliance with safety standards.
• Global Certifications: Meets UL, CSA, and CE requirements, enabling use in North American, European, and global markets.

Application Scenarios

1. Industrial Motor Protection

• HVAC Systems: Protects compressors, fans, and pumps in commercial and industrial HVAC installations from phase loss and unbalance, ensuring continuous climate control.
• Pumps & Compressors: Safeguards water treatment, wastewater, and industrial process pumps, as well as air compressors, against voltage anomalies that cause premature wear.
• Conveyor Systems: Prevents downtime in manufacturing and logistics conveyor lines by monitoring three-phase power to motors, reducing production disruptions.
• Machine Tools: Protects CNC machines, lathes, and milling machines from power quality issues, ensuring precision and reducing tool damage.

2. Commercial & Building Infrastructure

• Elevators & Escalators: Monitors three-phase power to lift motors, preventing phase failure-related breakdowns and ensuring passenger safety.
• Data Centers: Protects critical cooling systems (CRAC units) and backup generators from power anomalies, maintaining uninterrupted IT operations.
• Shopping Malls & Hospitals: Safeguards HVAC, lighting, and medical equipment power supplies, ensuring comfort and patient safety.

3. Marine & Offshore Applications

• Shipboard Power Systems: Monitors three-phase mains for auxiliary motors, pumps, and ventilation systems on commercial vessels and naval ships (400 Hz compatible models).
• Offshore Platforms: Protects oil and gas processing equipment, drilling rigs, and subsea pumps from power quality issues in harsh marine environments.

4. Renewable Energy & Power Distribution

• Wind Turbines: Monitors auxiliary power systems (pitch motors, hydraulics) for phase anomalies, ensuring turbine availability.
• Solar Inverter Stations: Protects three-phase inverters and transformers from overvoltage/undervoltage and phase loss, maximizing energy production.
• Industrial Substations: Supervises low-voltage three-phase feeders to critical loads, preventing cascading failures in power distribution networks.

5. Specialized Industrial Processes

• Food & Beverage: Protects mixers, blenders, and packaging line motors, ensuring uninterrupted production and reducing product waste.
• Pharmaceuticals: Safeguards clean room HVAC and process equipment, maintaining compliance with strict production standards.
• Mining & Construction: Monitors power to heavy machinery (excavators, crushers) in remote locations, reducing equipment downtime and maintenance costs.