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ABB NBRA-659C External Braking Chopper

1. Product Overview

Model / Order Code: NBRA-659C, ordering code 3ABD58930822, internal code 59006436

Series: ABB ACS800 series (compatible with ACS510, ACS550, ACS580 and other low-voltage drives)

Main Function: Quickly absorbs and dissipates regenerated energy during motor braking, preventing overvoltage/overcurrent surges and ensuring safe, smooth deceleration of the system.

2. Key Technical Parameters

3. Typical Applications

Drive systems requiring fast and smooth braking: conveyors, cranes, elevators, fans, pumps, compressors, crushers, etc.

Environments where regenerative energy feedback is limited or unavailable: when regenerative energy cannot be fed back into the grid and must be dissipated.

Designed for use with ACS800-series drives: ACS510, ACS550, ACS580, ACS800, and other low-voltage VFDs.

4. Selection & Usage Recommendations

Confirm drive voltage: Choose the 230 V, 400 V, or 500 V version according to site power supply (all correspond to NBRA-659C).

Calculate braking power requirements: Ensure required braking power ≤ 403 kW, based on motor power, braking time, and regenerated energy.

Check braking resistor specifications: For higher braking power, match with appropriate braking resistors (resistance values provided above).

Wiring: Use the DC+ / DC– terminals provided by the ACS800 drive. Follow official wiring diagrams and ensure cable cross-sections meet current requirements.

Maintenance: Periodically inspect the heatsink, terminals, and protective cover. Maintain proper ventilation to prevent overheating.

Conclusion

The ABB NBRA-659C is an external braking chopper designed for the ACS800 low-voltage drive family. Operating on 230–500 V AC (513–707 V DC), it provides up to 403 kW of braking power. With a compact design, UL/CE certifications, and high reliability, it is ideal for industrial drive systems that require fast and safe braking.

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 If you have any question pls do not hesitate to contact us. We can supply all kind of the automation parts,
 If you want to purchase parts pls send the parts model to my mail.
 If you have any question pls do not hesitate to contact us. We can supply all kind of the automation parts,
 If you want to purchase parts pls send the parts model to my mail or add my WhatsApp.

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