Product Description
The Allen-Bradley PowerFlex 700 AC drive, model 20BD875A3ANNNDC0, is a 700 HP-rated unit with an integrated DeviceNet slot. Operating at 480VAC 3-phase input, it provides 875 Amps continuous output current in normal duty mode (600 HP in heavy-duty). It features vector control, an HMI, and 24VDC I/O (using copper wire with 600V insulation). Feedback applications require an optional encoder module. Standard features exclude a brake IGBT, CE filter, brake resistor, and CM choke. The IP20-rated enclosure weighs approximately 867 kg and operates between 0-40C, requiring 6 inches of top and 4 inches of side clearance for cooling. Its dimensions are 93.4 x 49.9 x 35.1 inches. Use only recommended circuit breakers/fuses and connect the safety ground to the system ground. Disconnect common mode capacitors and protective MOVs in systems without solid grounding.
Is Your Device Showing These Signs?
The Allen Bradley 20BD875A3ANNNDC0 PowerFlex 755 AC drive commonly experiences issues such as IGBT failures, capacitor degradation leading to DC bus undervoltage faults, and encoder feedback problems causing erratic motor control. Communication faults on the EtherNet/IP network are also prevalent, often stemming from corrupted firmware or faulty network interface cards. Overcurrent trips and ground faults necessitate thorough inspection of motor insulation and drive output terminals. Resolving these problems involves replacing faulty components, updating firmware, and performing comprehensive parameter configuration checks within the drive's programming.
Technical specifications
The Allen-Bradley PowerFlex 700 AC drive (model 20BD875A3ANNNDC0) is a 700 HP, 480VAC 3-phase drive with DeviceNet. It outputs 875A continuously (600 HP heavy-duty), features vector control, an HMI, and 24VDC I/O. Encoder feedback requires an optional module. It lacks a brake IGBT, CE filter, brake resistor, and CM choke as standard. The IP20 enclosure weighs 867 kg, operates at 0-40C with specific clearance requirements, and measures 93.4 x 49.9 x 35.1 inches. Proper circuit protection and grounding are crucial, and common mode components should be disconnected in non-solidly grounded systems.
Our Repair Process for the
20BD875A3ANNNDC0
Our repair process for the Allen Bradley 20BD875A3ANNNDC0 PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the reported issue, whether it be IGBT failures, capacitor degradation, encoder feedback problems, communication faults, overcurrent trips, or ground faults. Subsequently, we replace all faulty components with new, high-quality parts, update the drive's firmware to the latest revision, and conduct thorough inspections of motor insulation and drive output terminals. Finally, we perform comprehensive parameter configuration checks within the drive's programming to ensure optimal performance and reliability before returning the unit.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















