Product Description
The Allen-Bradley 20DJ300N0ENNBNCNK is a powerful and reliable 600VAC, three-phase adjustable frequency drive designed for demanding industrial applications, handling up to 300 amps and featuring undervoltage protection, heat sink monitoring, and short-term ride-thru capabilities for both logic control and full-load power, despite its open IP00 enclosure, lack of integrated user interface, and absence of a braking system.
Is Your Device Showing These Signs?
The Allen Bradley 20DJ300N0ENNBNCNK commonly experiences issues related to IGBT failures due to overcurrent events or thermal stress, requiring replacement of the power module. Communication faults on the EtherNet/IP network arise from incorrect IP address configuration or damaged communication ports, necessitating network parameter verification and port inspection. Control board malfunctions, stemming from component degradation or firmware corruption, demand board repair or firmware reflashing. Encoder feedback errors, caused by wiring issues or encoder damage, necessitate encoder cable inspection and encoder replacement. Inconsistent motor performance is attributable to parameter misconfiguration within the drive, requiring parameter reset and tuning.
Technical specifications
The Allen-Bradley 20DJ300N0ENNBNCNK is a robust 600VAC, 3-phase adjustable frequency drive capable of 300 amps, offering undervoltage protection, heat sink monitoring, and ride-thru for both control logic and full power. However, it has an open IP00 enclosure, no built-in user interface, and lacks a braking system.
Our Repair Process for the
20DJ300N0ENNBNCNK
Our repair process for the Allen Bradley 20DJ300N0ENNBNCNK begins with a thorough diagnostic assessment to pinpoint the failure. Suspected IGBT failures require immediate power module replacement. Communication faults on the EtherNet/IP network demand verification of network parameters and inspection of communication ports, with port repair or replacement performed as needed. Control board malfunctions necessitate board repair or firmware reflashing to restore proper operation. Encoder feedback errors require encoder cable inspection and encoder replacement if damage is found. Inconsistent motor performance issues are addressed by resetting parameters to factory defaults and tuning the drive for optimal performance.
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