The ABB NBRA-669C Braking Chopper is a high-quality, durable braking unit engineered to enhance the performance, safety, and efficiency of ABB variable frequency drives (VFDs). This brand-new ABB NBRA-669C is designed to control and dissipate excess regenerative energy generated by motors during deceleration, ensuring stable and safe drive operation under all load conditions.

As part of ABB’s trusted industrial drive accessories, the NBRA-669C Braking Chopper is one of the most favorable choices for dynamic braking in demanding industrial applications. It effectively prevents DC bus overvoltage by channeling regenerative energy into external braking resistors, protecting both the drive and motor from damage due to energy surges.

Built with ABB’s advanced design and engineering standards, the NBRA-669C provides exceptional reliability and long service life. It is fully compatible with ABB ACS series drives and can be seamlessly integrated into new or existing drive systems. With its compact, modular form factor and robust construction, the braking chopper is ideal for heavy-duty industrial applications such as cranes, conveyors, elevators, rolling mills, and machine tools — where rapid braking and precise speed control are critical.

The ABB NBRA-669C Braking Chopper is designed for easy installation and maintenance, with standardized mounting and pre-configured terminals for quick connection to braking resistors. Its high thermal capacity and superior switching components ensure efficient energy dissipation, maintaining consistent performance even in high-cycling operations.

By choosing the ABB NBRA-669C, industries benefit from improved motor control, enhanced energy management, and extended equipment lifespan — all backed by ABB’s global reputation for innovation, reliability, and safety in industrial automation.

Key Features

• Model: ABB NBRA-669C Braking Chopper

• Condition: 100% Brand New and Genuine ABB Product

• Manufacturer: ABB

• Function: Dissipates excess regenerative energy from the DC bus during braking

• Compatibility: Fully compatible with ABB ACS series variable frequency drives (VFDs)

• Applications: Cranes, conveyors, elevators, machine tools, and heavy-duty process drives

• Protection: Prevents DC bus overvoltage and protects inverter circuitry

• Design: Compact, modular, and easy-to-install unit

• Thermal Management: High-efficiency cooling for continuous operation under heavy loads

• Integration: Compatible with external braking resistors for dynamic braking control

• Performance: High switching frequency and stable operation during regenerative cycles

• Operating Temperature: −10 °C to +50 °C

• Mounting Type: Panel or cabinet mounting

• Safety: Built-in fault indication and overload protection

• Contact Information:

  Evaflux Private Limited
  📞 Phone: +91 7303573946
  📧 Email: support@evaflux.com