Yaskawa CDBR-4030B

Description:

The Yaskawa CDBR-4030B Dynamic Braking Unit is used in Yaskawa AC drive systems to dissipate regenerative energy and protect the drive during deceleration or overhauling load conditions. Commonly installed in motor control systems such as conveyors, cranes, and machine tools where rapid stopping or high inertia loads generate excess energy. Maintenance teams and system integrators use this part for replacement of failed braking units, system protection upgrades, and maintaining safe operation of variable frequency drive systems.

Applications:

The Yaskawa CDBR-4030B is used in industrial automation environments where variable frequency drives (VFDs) control motors subject to regenerative loads. It is typically paired with braking resistors to safely dissipate excess energy generated during deceleration. Common applications include elevators, hoists, cranes, conveyors, and high-speed machinery where controlled stopping and system protection are critical. These units help prevent overvoltage faults and improve system reliability in demanding motion control environments.

Technical Specifications:

• Manufacturer: Yaskawa Electric
• Model / Part Number: CDBR-4030B
• Product Type: Dynamic Braking Unit
• Function: Dissipates regenerative energy from AC drives
• System Compatibility: Yaskawa VFDs and AC drive systems
• Voltage Class: 400V class (typical for model series)
• Application: Motor braking and overvoltage protection
• Integration: Requires external braking resistor
• Installation: Panel-mounted within control cabinet
• Protection Role: Prevents DC bus overvoltage conditions
• Operation: Activates during deceleration or overhauling loads
• Design: Industrial-grade braking control unit
• Lifecycle: Active / widely available replacement component

Common Replacements:

• Yaskawa CDBR-4045B Braking Unit
• Yaskawa CDBR-4015B Braking Unit
• Yaskawa CDBR Series Dynamic Braking Units