Product Description
The Allen-Bradley 20F11NC037JA0NNNNN PowerFlex 753 AC drive, manufactured by Allen-Bradley/Rockwell Automation, is a robust and compact solution for low-power industrial applications demanding reliability, flexibility, and efficiency. This size 3 frame drive, weighing approximately 13 kg, features a 400VAC/540VDC voltage rating, a 37 Amp maximum current, and an 18.5 kilowatt power rating. It offers advanced control capabilities like Volts per Hertz, sensorless vector, and FORCE technology vector control, with enclosure options ranging from IP20 to IP54. The drive provides surge protection up to 6000V and noise immunity up to 1500V, and includes optional features like dynamic braking with an internal transistor and filter for tailored application needs. It has an IP20/NEMA/UL Type Open enclosure protection rating.
Is Your Device Showing These Signs?
The Allen Bradley 20F11NC037JA0NNNNN PowerFlex 753 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 failures on Ethernet/IP or other network interfaces are frequent, necessitating firmware upgrades or communication module replacement. Overcurrent trips due to improper motor tuning or load imbalances, and nuisance tripping from ground faults, demand careful parameter adjustments and insulation testing. Cooling fan malfunctions result in overheating and thermal overload faults, requiring fan replacement to maintain optimal drive performance.
Technical specifications
The Allen-Bradley 20F11NC037JA0NNNNN PowerFlex 753 AC drive is a compact and reliable 18.5 kW industrial drive designed for low-power applications. It operates at 400VAC/540VDC, supports up to 37 Amps, and offers advanced control options like Volts per Hertz and sensorless vector control. It features robust protection against surges and noise, and offers enclosure options up to IP54, along with optional features like dynamic braking.
Our Repair Process for the
20F11NC037JA0NNNNN
Our repair process for the Allen Bradley 20F11NC037JA0NNNNN PowerFlex 753 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. This includes a thorough inspection of IGBTs, capacitors, and encoder feedback systems, followed by testing of communication interfaces to identify network faults. Parameter adjustments and insulation testing are performed to address overcurrent and ground fault issues. Cooling fan functionality is assessed, and replacement is completed if malfunctions are present. Firmware upgrades are performed, and communication modules are replaced as needed to resolve communication failures. All repairs conclude with rigorous testing under load to ensure optimal drive performance and reliability.
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.

















