Product Description
The Allen-Bradley/Rockwell Automation 20F11ND052JA0NNNNN AC drive, part of the PowerFlex 753 series, is a wall-mountable, space-saving device designed for standard and specific industrial applications. Certified to international standards (EAC, SEMI F47, CE, c-UL-us, ABS, KCC), it features a NEMA/UL open type enclosure (IP 00/IP 20), frame size 4, 480VAC/650VDC voltage ratings, AC input with pre-charge and DC terminals, a 40HP/52A normal duty rating, dynamic braking transistor (no resistor), and a filtering jumper. While suitable for industrial environments, it's not for use in areas with vapors, corrosive gases, or high dust levels, and manufacturer guidelines should be followed for installation. This variable frequency drive (VFD/VSD), also known as a frequency inverter or simply a drive, modulates AC motor speed and torque, enabling use as a Final Control Element (FCE) for efficient and accurate control. It supports various control techniques (Vector Control w/FORCE Technology, Sensorless Vector Control, Volts per Hertz, Permanent Magnet Motor control) and safety features (Hardwired Safe Torque-Off, Hardwired Safe Speed Monitor). Communication options include Ethernet, ControlNet, DeviceNet, RS485, ProfiBus DP, MODBUS TCP/IP, and HVAC protocols like MODBUS RTU, FLN P1, N2, CANOpen, and LonWorks. It does not include a built-in HMI.
Is Your Device Showing These Signs?
The Allen Bradley 20F11ND052JA0NNNNN PowerFlex 753 AC drive commonly experiences issues such as IGBT failures, DC bus capacitor degradation leading to over-voltage faults, and cooling fan malfunctions causing thermal overloads. Communication errors on the Ethernet/IP network and encoder feedback problems are frequent. Current sensor drift affects motor control accuracy, while keypad or HMI failures impede parameter adjustments. Resolving these problems ensures optimal drive performance and minimizes downtime.
Technical specifications
The Allen-Bradley/Rockwell Automation 20F11ND052JA0NNNNN PowerFlex 753 AC drive is a wall-mountable, space-saving VFD for industrial applications. It's certified to international standards, has a NEMA/UL open type enclosure, and supports 480VAC/650VDC. It's rated for 40HP/52A normal duty and includes a dynamic braking transistor and filtering jumper. While suitable for industrial use, it's not for hazardous environments. The drive offers various control techniques, safety features, and communication options (including Ethernet, ControlNet, DeviceNet, and HVAC protocols), but lacks a built-in HMI.
Our Repair Process for the
20F11ND052JA0NNNNN
Our repair process for the Allen Bradley 20F11ND052JA0NNNNN PowerFlex 753 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. This includes rigorous testing of IGBTs, DC bus capacitors, cooling fans, communication interfaces, encoder feedback systems, and current sensors. Keypad and HMI functionality is assessed. Upon identifying the faulty components, we proceed with replacements using only high-quality parts that meet or exceed original manufacturer specifications. Post-repair, the drive undergoes extensive load testing to verify performance under various operating conditions. Finally, all parameters are configured and calibrated to ensure optimal motor control and system integration before the drive is returned.
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.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY