Product Overview
The Yaskawa CDBR-42200D is a high-capacity 480 VAC-class dynamic braking transistor module for large industrial variable-frequency drive systems. The shortened designation CDBR-4220D is widely used in drawings, maintenance records and market searches, while CDBR-42200D is the complete model number.
The module controls the transfer of regenerated DC bus energy into an external braking resistor during rapid deceleration or operation with an overhauling load. Its 80 Arms rated current and 250 A peak-current capability make it suitable for demanding drive applications where a smaller braking module does not provide sufficient capacity.
Main Features
- High-capacity dynamic braking module for 480 VAC-class drives.
- Rated discharge current of 80 Arms.
- Peak discharge current of 250 A.
- Current rating based on 10 percent duty and maximum 10-second operation.
- Minimum connectable resistance of 3.2 ohm.
- Open-chassis IP00 construction for protected enclosure installation.
- Designed for connection to an external braking resistor system.
- Supports engineered multi-module arrangements when specified by the drive selection documentation.
Technical Specifications
| Manufacturer | Yaskawa Electric |
| Series | CDBR-D |
| Complete Model | CDBR-42200D |
| Common Short Model | CDBR-4220D |
| Product Type | High-Capacity Dynamic Braking Transistor Module |
| Voltage Rating | 480 VAC Class |
| DC Bus Range | 460 to 800 VDC Peak |
| Rated Current | 80 Arms |
| Peak Current | 250 A |
| Duty Reference | 10 Percent Duty; Maximum 10 Seconds |
| Minimum Connectable Resistance | 3.2 Ohm |
| Heat Loss | 152 W |
| Enclosure Rating | IP00 Open Chassis |
| Dimensions | 294 x 175 x 200 mm |
| Approximate Net Weight | 7.5 kg |
| External Braking Resistor | Required and Sold Separately Unless Specified |
Compatible System and Applications
The CDBR-42200D is intended for compatible high-capacity industrial AC drive systems. The quantity of modules and resistor banks must be selected from the drive-specific braking tables. Motor horsepower alone is not sufficient because braking requirements depend on load inertia, overhauling torque, stopping time, operating frequency and resistor thermal capacity.
Typical applications include large cranes, hoists, mine conveyors, centrifuges, winders, test stands, large machine tools, downhill conveyors and other systems that return substantial mechanical energy to the DC bus.
Maintenance and Replacement Notes
Install the IP00 module inside a suitable protected electrical enclosure with adequate clearance and ventilation. Verify the calculated braking current, minimum resistance, resistor wattage, thermal protection, conductor size and terminal torque.
Multiple CDBR modules must not be connected in parallel by assumption. Follow the approved master and slave control arrangement and the drive manufacturer's wiring instructions.
The previous-generation CDBR-4220B has the same nominal 80 Arms and 250 A current class, but the D-version upgrade requires verification of enclosure size, mounting points, terminal layout, wiring and braking-resistor configuration.
Related Models
Related models include CDBR-40450D, CDBR-40900D, CDBR-4220B and the 240 VAC-class CDBR-21100D.
Inquiry and Supply Notes
Please provide the complete drive model, motor capacity, load type, stopping time, starts per hour, existing braking resistor information and the number of installed CDBR modules. The braking resistor is not assumed to be included unless it is specifically listed in the quotation.
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Yaskawa CDBR-42200D CDBR-4220D 480V 80A Dynamic Braking Unit for AC Drives Images
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