Allen-Bradley 20BD-DB1-0 Kit, Dynamic Brake Resistor,115 Ohm,Internal Mount,400 480V
$449.99
Out of stock
Request QuoteAllen-Bradley 20BD-DB1-0 — The Allen-Bradley 20BD-DB1-0 is a Bulletin 20BD dynamic brake chopper / resistor assembly for PowerFlex 750-Series drives: Kit, Dynamic Brake Resistor,115 Ohm,Internal Mount,400 480V AC Input, Frame 0. Dynamic braking is used on high-inertia or overhauling loads where the motor regenerates kinetic energy to the drive’s DC bus during deceleration. Without a dynamic brake, the drive faults on DC Bus Overvoltage. The 20BD chopper switches a resistor across the DC bus to dissipate regenerated energy as heat, keeping the DC bus within safe voltage limits.
| Product Family | Bulletin 20BD PowerFlex 750-Series Dynamic Brake |
| Purpose | Dissipates regenerative energy from drive DC bus as heat during deceleration |
| Compatible Drives | PowerFlex 753 (20F) / 755 (20G) / 755 with Options (21G) |
| Selection Reference | Match by drive frame + duty cycle per 750-TD002 Dynamic Brake Selection |
| Installation | External to drive; wired to drive DC+ / DC- bus terminals |
| Typical Applications | Centrifuges, overhauling cranes, spindle drives, rapid-stop conveyors |
Description
Allen-Bradley 20BD-DB1-0
The Allen-Bradley 20BD-DB1-0 is a Bulletin 20BD dynamic brake chopper / resistor assembly for PowerFlex 750-Series drives: Kit, Dynamic Brake Resistor,115 Ohm,Internal Mount,400 480V AC Input, Frame 0. Dynamic braking is used on high-inertia or overhauling loads where the motor regenerates kinetic energy to the drive’s DC bus during deceleration. Without a dynamic brake, the drive faults on DC Bus Overvoltage. The 20BD chopper switches a resistor across the DC bus to dissipate regenerated energy as heat, keeping the DC bus within safe voltage limits.
| Dynamic Brake Overview | |
|---|---|
| Catalog Number | 20BD-DB1-0 |
| Product Family | Bulletin 20BD PowerFlex 750-Series Dynamic Brake |
| Function | DC-bus chopper + resistor assembly |
| Purpose | Dissipates regenerated energy; protects DC bus capacitors |
| When to Use | |
|---|---|
| High-Inertia Loads | Flywheels, centrifuges, large rotating masses |
| Overhauling Loads | Downhill conveyors, crane lowering, load-driven deceleration |
| Rapid Stop | Applications requiring faster-than-coast deceleration |
| Without DB | Drive faults on DC Bus Overvoltage during deceleration |
| Installation & Sizing | |
|---|---|
| Mounting | External to drive, adjacent panel or separate NEMA enclosure |
| Wiring | DC+ and DC- bus terminals on drive |
| Heat Dissipation | Resistor dissipates regenerated energy as heat; panel ventilation required |
| Sizing Reference | Rockwell Automation publication 750-TD002 Dynamic Brake Selection |
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 20BD-DB1-0
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 20BD-DB1-0 units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Reference Documents
Alternative Part Numbers & Names for 20BD-DB1-0
The 20BD-DB1-0 by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 20BDDB10
- Allen Bradley 20BD-DB1-0
- Allen-Bradley 20BD-DB1-0
- 20BD DB1 0
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 12 × 10 × 6 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 662453975665 |
| mpn | 20BD-DB1-0 |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 20BD-DB1-0
| Shipping Dimensions | |
|---|---|
| Weight | 0.5 lbs |
| Length | 12 in |
| Width | 10 in |
| Height | 6 in |
| Box Dimensions (L×W×H) | 12 × 10 × 6 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Where can I find the technical datasheet for the 20BD-DB1-0?
The official manufacturer datasheet is available for download on the 20BD-DB1-0 product page at PLC Exchange. Look for the Tech Data PDF link in the product description.
Does the 20BD-DB1-0 include a warranty?
Yes. Every 20BD-DB1-0 sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 20BD-DB1-0?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 20BD-DB1-0 ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 20BD-DB1-0?
The 20BD-DB1-0 is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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