Product Description
The Allen-Bradley PowerFlex 700S adjustable-frequency AC drive, part number 20DD300N3ENNNNASE, operates on 480V AC three-phase power, delivers 300 amps for normal-duty industrial applications, and features an IP20/NEMA Type 1 enclosure for indoor use, a full numeric LCD interface, adjustable bus undervoltage trip, and a microprocessor-monitored heat sink thermistor for overheating protection; while it lacks a braking system, it provides 0.25-second logic control ride-thru and 15-millisecond power ride-thru at full load for enhanced reliability during brief power interruptions.
Is Your Device Showing These Signs?
The Allen Bradley 20DD300N3ENNNNASE commonly experiences issues related to IGBT failures, often indicated by overcurrent faults and drive shutdowns. Resolving these faults requires replacing the damaged IGBT modules and thoroughly testing gate drive circuitry. Capacitor degradation within the DC bus is another frequent problem, leading to voltage instability and potential drive trips; capacitor replacement is mandatory. Communication errors on the EtherNet/IP network also occur, necessitating firmware updates, network configuration verification, and cable integrity checks. Encoder feedback problems, resulting in inaccurate motor positioning and velocity control, demand encoder replacement or resolver signal adjustments.
Technical specifications
The Allen-Bradley PowerFlex 700S drive (20DD300N3ENNNNASE) is a 480V, 300A AC drive designed for normal-duty industrial applications. It has an IP20/NEMA Type 1 enclosure, a numeric LCD interface, adjustable undervoltage trip, and heat sink thermistor protection. It lacks a braking system but offers ride-thru capabilities for brief power interruptions.
Our Repair Process for the
20DD300N3ENNNNASE
Our repair process for the Allen Bradley 20DD300N3ENNNNASE begins with a comprehensive diagnostic assessment to confirm the fault. For IGBT failures, we replace all damaged IGBT modules and rigorously test the gate drive circuitry to ensure proper functionality. When capacitor degradation is detected within the DC bus, we replace all capacitors to restore voltage stability. In cases of EtherNet/IP communication errors, we perform mandatory firmware updates, verify network configurations, and conduct thorough cable integrity checks. If encoder feedback problems are present, we replace the encoder or make necessary resolver signal adjustments to guarantee accurate motor positioning and velocity control.
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