REM620 NBMNAAABNDC1BBN11G ABB motor protection relay

• Brand
  ABB
• Model
  REM620 NBMNAAABNDC1BBN11G
• Product Name
  Motor Protection and Control Relay, Relion 620 Series
• Country of Origin
  Finland
• HS Code
  85364900
• Dimensions
  242m×154mm×62mm
• Weight
  1.2kg
• Operating Temperature
  -25°C to +70°C
• Storage Temperature
  -40°C to +85°C
• Power Supply
  24V to 250V AC/DC
• Warranty
  12 month
• Product Status
  New and original

ABB REM620 NBMNAAABNDC1BBN11G Product Introduction and Technical Specifications

Electrical Input & Output Parameters

Auxiliary Power Supply Input: Wide adaptive power supply range of 24V to 250V AC/DC, compatible with various industrial power supply modes, with strong tolerance to grid voltage fluctuation

Rated Frequency: 50Hz/60Hz automatic identification, adapting to global different regional power grid frequency standards

Current Input: Support switchable 1A/5A CT secondary current input, matching mainstream industrial motor current transformer specifications

Voltage Input: Compatible with standard low and medium voltage distribution system secondary voltage signals, realizing full-range electrical parameter collection

Binary Input Channels: Multiple configurable isolated digital input channels, used for collecting motor circuit breaker status, auxiliary switch signals and external fault alarm signals

Relay Output Channels: Programmable high-reliability contact outputs, supporting motor tripping, startup and shutdown control, fault alarm signal output and linkage interlock control

Communication Interface: Built-in multi-protocol communication ports, supporting IEC 61850, Modbus RTU and IEC 60870-5-103 protocols, realizing seamless connection with SCADA and substation automation systems

Sampling Accuracy: High-precision real-time electrical signal sampling, ensuring accurate monitoring of motor current, voltage, power and temperature parameters

Product Characteristics

This ABB Relion 620 series motor protection relay has outstanding industrial power-grade characteristics. It adopts high-performance industrial-grade processing chips and precision sampling components, featuring high measurement accuracy and stable long-term operating performance. The built-in multi-level electromagnetic shielding and anti-interference circuit design can effectively resist strong electromagnetic interference in industrial workshops and power distribution rooms, avoiding protection misoperation and signal distortion. The integrated highly compact structure realizes the integration of protection, monitoring, control and communication functions, saving switchgear installation space. It complies with international IEC and ANSI power industry safety standards, with standardized protection algorithms and reliable action logic. The whole machine has excellent anti-aging, vibration and impact resistance, supporting 24-hour uninterrupted continuous operation of industrial motor equipment. The fixed optimized program configuration of the NBMNAAABNDC1BBN11G model is targeted at standard motor working conditions, with stable logic and low error rate, meeting standardized industrial application requirements.

Product Advantages

In terms of performance advantages, the comprehensive multi-dimensional protection mechanism covers all common motor faults, effectively improving the safety and service life of industrial motor equipment. High-precision parameter monitoring and fault recording functions provide complete data support for equipment operation analysis and fault troubleshooting. Fast fault response speed minimizes fault impact range and reduces equipment loss and production outage time. In terms of application advantages, the ultra-wide universal AC/DC power supply design eliminates on-site power supply matching restrictions and adapts to various industrial power supply environments. Multiple mainstream communication protocols ensure seamless docking with industrial automation and remote monitoring systems, with strong system compatibility. The pre-optimized fixed configuration simplifies on-site commissioning steps, shortens project debugging cycle and reduces technical operation difficulty. In terms of cost advantages, the highly integrated multi-function design replaces multiple single-function protection and monitoring devices, reducing overall system procurement cost. The low failure rate and long service life greatly reduce later equipment maintenance, calibration and replacement costs, improving the long-term economic operation benefit of industrial motor equipment and production lines.

Application Cases & Scenarios

The ABB REM620 NBMNAAABNDC1BBN11G motor protection relay is widely used in protection and monitoring of various industrial low and medium voltage motor equipment. In power industry, it is applied to protection and control of power plant auxiliary motors such as fans, water pumps and induced draft fans, ensuring stable operation of power plant auxiliary systems. In petrochemical and chemical industry, it protects various production process motors and pumping equipment, preventing equipment failure caused by electrical faults and ensuring continuous and stable operation of chemical production lines. In metallurgy, mining and building materials industry, it serves high-power transmission motors and processing equipment motors, realizing real-time fault protection and status monitoring of heavy-load motor equipment. In industrial manufacturing parks and automated production lines, it provides safe protection for logistics conveying motors, processing equipment motors and automated actuator motors. In addition, it is also applicable to environmental protection water treatment plants, pharmaceutical factories and other industrial scenarios with a large number of motor equipment, being a core standard protection device for modern industrial motor intelligent protection and safe operation management.

Core Functions

The ABB REM620 NBMNAAABNDC1BBN11G relay integrates comprehensive motor protection, monitoring and intelligent control core functions to meet full-scenario industrial motor operation demands. It provides complete motor protection functions including overload protection, locked rotor protection, phase failure and phase unbalance protection, overcurrent protection, earth fault protection and undervoltage/overvoltage protection, covering all common motor electrical faults to quickly isolate faulty equipment and avoid motor burnout and production shutdown. It supports real-time monitoring of motor operating parameters such as three-phase current, voltage, active power, reactive power and operating temperature, realizing full-cycle status perception of motor equipment. Equipped with intelligent motor start-up control logic, it realizes soft start protection and repeated start prohibition functions to avoid equipment damage caused by frequent start-up. The device integrates powerful event logging and fault waveform recording functions, automatically recording fault types, action time and operating data to support post-fault analysis and equipment maintenance. In addition, it supports local HMI manual configuration and remote online parameter debugging, with flexible programmable logic functions, realizing personalized protection scheme setting and interlock linkage control for different types of industrial motors.