ABB NBRA-658C Braking Chopper

The ABB NBRA-658C is a high-performance external braking chopper designed to manage regenerative energy generated by frequency converters during deceleration or stopping. This braking chopper is specifically designed to work with ABB ACS800, ACS850, and ACS550 drives, providing overvoltage protection and ensuring smooth operation. It is suitable for use with 400V or 500V three-phase inverters and offers both continuous and peak power ratings to handle various industrial applications.

Detailed Parameter Table

Core Advantages and Technical Highlights

High Power Handling Capability:

• The ABB NBRA-658C can handle peak power up to 229kW for 60 seconds every 10 minutes at 400V, and 220kW at 500V. This makes it suitable for applications requiring high braking power.

Versatile Application:

• This braking chopper is compatible with a wide range of ABB drives, including ACS800, ACS850, and ACS550. It provides essential braking functions for both ABB and other brands of frequency converters.

Overvoltage Protection:

• The ABB NBRA-658C offers robust overvoltage protection, preventing drive trips due to excessive voltage during deceleration or extended stop ramps.

Easy Installation and Setup:

• The braking chopper features a straightforward setup process and can be easily integrated into existing systems. It includes detailed mechanical and electrical installation guides to ensure proper setup.

Reliable Operation:

• Designed for industrial environments, the ABB NBRA-658C operates reliably within a wide temperature range of -25°C to +70°C. Its IP00 enclosure rating ensures protection against dust and water ingress.

Typical Application Scenarios

The ABB NBRA-658C is widely used in various industrial sectors, including:

• Manufacturing: For controlling and braking heavy machinery during deceleration or stop ramps.

• Power Plants: To manage braking in large motors and drives, ensuring safe and efficient operation.

• Water and Wastewater Treatment: For controlling pumps and fans, providing reliable braking functions to prevent overvoltage.

Installation Commissioning, and Maintenance Instructions

Installation Preparation:

• Ensure the installation environment meets the specified temperature and humidity requirements. The braking chopper should be installed in a location with adequate ventilation to dissipate heat.

• Verify that the power supply voltage is within the specified range to avoid damage to the module.

Maintenance Suggestions:

• Regularly inspect the installation to ensure the braking chopper is securely mounted and all connections are tight.

• Monitor the operational status of the braking chopper to detect any signs of malfunction early.

• Conduct functional testing on the braking chopper at least once a year to ensure optimal performance.

Service and Guarantee Commitment

ABB provides comprehensive support for the ABB NBRA-658C, including a robust warranty that ensures product quality and reliability. The company offers extensive after-sales services such as technical support, repair services, and spare part supply. ABB’s global network of service centers ensures prompt assistance and expert guidance, demonstrating the company’s commitment to customer satisfaction and product excellence.