Yaskawa CDBR-4045B

Yaskawa CDBR-4045B: High-Performance Dynamic Braking Transistor for Demanding Applications

The Yaskawa CDBR-4045B is a high-efficiency dynamic braking unit designed for demanding industrial applications where rapid motor deceleration and control of regenerative energy are essential. Built for 400V class drives, this braking transistor is ideal for systems that require a robust braking solution to maintain performance, safety, and energy management. The CDBR-4045B ensures smooth stopping and minimal wear on mechanical braking components, whether used in elevators, cranes, or high-speed automation systems.

Optimized for 400V Class Drives

Engineered specifically for 400V-class variable frequency drives (VFDs), the CDBR-4045B is an integral part of advanced motor control systems. It absorbs excess regenerative energy produced when a motor decelerates or stops. Instead of allowing this energy to cause voltage spikes that could damage sensitive electronics or cause erratic drive behavior, the CDBR-4045B safely dissipates it through a braking resistor. This allows for controlled deceleration, preventing system damage and ensuring operational continuity.

Powerful Capacity and Electrical Specifications

The Yaskawa CDBR-4045B is rated for motors up to 45 kW, making it suitable for a wide range of mid- to high-power applications. It handles an input voltage of 510–660 VDC and delivers a braking current of up to 18 amps. These specifications ensure consistent and reliable performance even under strenuous load conditions. It provides not just stopping power but also confidence in system reliability during critical operations where uptime and precision matter.

Enhancing Safety and Energy Management

One of the most essential roles of a braking unit like the CDBR-4045B is to protect the drive and motor system during sudden stops or deceleration. Without a dynamic braking system, regenerative energy has nowhere to go, which could lead to system faults or thermal damage. The CDBR-4045B enhances the overall safety of industrial automation systems and reduces dependency on mechanical braking systems, which are prone to wear and require frequent maintenance. Additionally, this solution contributes to better energy management by safely handling and redirecting energy that would otherwise be wasted.

Compact and Reliable Design

The unit features a compact and rugged design suitable for installation in standard control cabinets. Its reliable construction ensures long-term operation even in challenging industrial environments. Whether retrofitting existing equipment or building a new automation line, the CDBR-4045B can be easily integrated with Yaskawa drive systems and other compatible motor control units.

Trusted Availability and Support

Available immediately from MRO Electric and Supply, the Yaskawa CDBR-4045B has a comprehensive 2-year warranty and free shipping. With MRO's commitment to fast delivery and expert customer service, you can count on receiving your component quickly and getting the support you need for quick installation and configuration.

Frequently Asked Questions

What is the primary function of the Yaskawa CDBR-4045B?

It dissipates regenerative energy during motor deceleration to prevent overvoltage in the drive.

What voltage class is it compatible with?

It is designed for 400V class VFD systems.

What is the rated power capacity of this braking unit?

It supports applications up to 45 kW.

What is the input voltage range?

The CDBR-4045B operates within 510–660 VDC.

What current can the unit handle?

It is rated for a braking current of 18 amps.

Can this be used with non-Yaskawa drives?

While optimized for Yaskawa systems, it may be compatible with other drives that meet the voltage and current specs.

What kind of environments is this unit suited for?

It is designed for industrial environments with moderate temperature and dust control.

How does it improve system safety?

By preventing overvoltage, it protects drives and motors from damage during braking.

Does it require a separate resistor?

Yes, the dynamic braking resistor is typically connected externally.

Is the unit available for fast shipping?

MRO Electric offers immediate availability with free shipping and a 2-year warranty.

Yaskawa products are manufactured in Japan and are designed for Advanced manufacturing, milling, and factory automation usage. They come with a 2-year warranty from MRO Electric. We also carry Braking Units from other manufacturers such as Schneider Electric and KUKA.

Contact Us Today For More Information About Yaskawa Products

Check out the rest of our Yaskawa product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like CDBR-4045B, take a look at more from our Braking Units line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our CDBR-4045B products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.