ABB REM610 C51HCNN02is a high-performance motor protection IED from ABB Relion 610 series. It provides complete thermal, overload, stall, earth fault and phase unbalance protection for LV/MV motors. Supports IEC 61850, Modbus, Profibus and DNP3 for SCADA integration. Ideal for pumps, fans, mills and industrial drive systems.

Product Detail Page Content

Product Overview

ABB REM610 C51HCNN02 is a dedicated microprocessor-based motor protection intelligent electronic device (IED) belonging to the ABB Relion 610 series. Designed for the protection, control, monitoring and management of low-voltage and medium-voltage asynchronous motors, this unit delivers reliable and selective fault clearance to prevent motor damage, reduce downtime and extend service life.

This model features a compact 1U plug-in structure, standard HMI, built-in multiple communication protocols and complete protection algorithms, making it widely applied in industrial power systems, water treatment, mining, manufacturing, marine and offshore facilities.

Key Features

• All-in-one motor protection, measurement, control and monitoring

• Advanced thermal replica model for accurate motor winding protection

• Comprehensive fault recording and event logging for diagnostics

• High EMC performance and stable operation in harsh environments

• Front-panel HMI with LCD display and intuitive operation

• Flexible communication for easy SCADA and substation integration

• Self-supervision and continuous system health monitoring

• DNV certified for marine and offshore applications

Core Protection Functions

• Thermal Overload Protection

Simulates motor heating and cooling characteristics in real time to protect against long-term overload and overheating.

• Stall & Locked Rotor Protection

Detects locked rotor conditions during startup and operation, providing fast tripping to avoid winding burnout.

• Startup Supervision

Monitors startup time and current to prevent failure caused by excessive startup duration.

• Phase Overcurrent Protection (50/51)

Includes instantaneous and time-delayed overcurrent protection for short-circuit and overload faults.

• Earth Fault Protection (50N/51N)

Detects single-phase-to-ground faults to ensure personal and equipment safety.

• Phase Unbalance & Phase Reversal Protection

Protects against negative sequence current damage and wrong phase connection.

• Undercurrent Protection

Monitors load loss or broken belt conditions in pumps and conveyors.

• RTD/Thermistor Temperature Monitoring

Supports external temperature inputs for direct motor winding and bearing temperature protection.

Control & Monitoring Functions

• Local and remote motor start/stop control

• Circuit breaker control and interlocking logic

• Trip circuit supervision

• Motor operation statistics and startup counter

• Real-time measurement of current, voltage, power and energy

• Disturbance recording and fault waveform capture

• Configurable logic for customized applications

Communication

• IEC 61850

• Modbus RTU/TCP

• Profibus DP

• DNP3.0

These protocols enable seamless integration with DCS, PLC and SCADA systems for remote monitoring and control.

Typical Applications

• Water pumps and cooling pumps

• Fans and blowers

• Compressors

• Crushers, mills and conveyors

• Industrial drive systems

• Power distribution substations

• Marine and offshore platforms

  

Why Choose ABB REM610 C51HCNN02

• Proven ABB protection technology with high reliability

• Compact size and easy installation

• High configurability to adapt to different motor types

• Long service life and low maintenance cost

• Strong compatibility with new and legacy power systems

• Sufficient stock for fast replacement and retrofit projects