ABB NBRA-658C Universal Braking Chopper

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1. Product Overview

The ABB NBRA-658C is a Universal Braking Chopper used in DC and AC motor drive systems to safely handle regenerative energy. It dissipates braking energy into a braking resistor, preventing overvoltage on the DC bus and protecting the inverter, motor, and control system. The NBRA-658C is suitable for a variety of industrial applications and features high reliability and ease of integration.

2. Detailed Technical Specifications

• Model: NBRA-658C

• Type: Universal Braking Chopper

• Applicable Voltage: DC 200–690 V or AC/DC 220–600 V (depending on model)

• Maximum Output Power: 5–50 kW (depending on load and model)

• Trigger Method: Voltage monitoring + control logic

• Response Time: ≤ 5 ms

• Overvoltage Protection: Automatic switching to braking resistor

• Cooling Method: Air-cooled or forced cooling

• Mounting: Panel or rail

• Operating Temperature: –20 ℃ to +60 ℃

• Protection Class: IP20

• Standards & Certification: IEC 60947-4-1, CE

3. Advantages & Features

• Efficient braking: Rapid switch to braking resistor ensures safe DC bus voltage

• High reliability: Industrial-grade design with long mechanical and electronic life

• Wide compatibility: Suitable for various ABB inverters and motor drive systems

• Fast response: ≤ 5 ms ensures quick energy release

• Compact design: Saves installation space and facilitates system integration

• Easy operation: Quick integration into control system without additional adjustment

4. Typical Application Areas

• Braking control in variable frequency drive systems

• Lifts, elevators, and cranes

• Conveyors and automated production lines

• Motor-driven fans, pumps, and compressors

• Energy recovery and power electronics systems

• Industrial robots and machinery control systems

5. Precautions & Installation Notes

• Verify voltage, current, and braking power parameters before installation

• Ensure secure terminal connections to prevent poor contact

• Provide adequate cooling to prevent overheating

• Avoid high temperature, humidity, and strong electromagnetic interference

• Confirm control logic and trigger voltage settings before operation

• Regularly check heatsink and terminal condition

• Avoid mechanical impact to ensure safe installation

The structure and details of the product：

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