Product Overview
The Allen-Bradley 20F11ND027AA0NNNNN is a specialized adjustable frequency drive from the PowerFlex 753 series. Designed for three-phase AC input, this drive delivers robust overload capacity and significant output current, making it suitable for demanding industrial environments. With embedded I/O and air-cooled design, it offers reliable performance for variable speed motor control.
Technical Specifications Breakdown
Key parameters for the 20F11ND027AA0NNNNN are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Allen Bradley |
| Product Type | Adjustable Frequency Drive |
| Product Line | PowerFlex 753 |
| Output Current (ND) | 27 A |
| Output Current (HD) | 22 A |
| Power Rating (ND) | 15 kW / 20 HP |
| Power Rating (HD) | 11 kW / 15 HP |
| Input Voltage | 480 VAC / 650 VDC |
| Frequency Range | 0 to 599 Hz |
| Overload Capacity | 110% for 60 sec |
| Cooling Method | Air Cooled |
| EMC Filtering | Included |
| Mounting Style | Open Type |
| Phase | Three-Phase |
| Weight | 30.00 lbs (13.61 kg) |
Industry Applications
Typical uses include conveyors, pumps, fans, and compressors in manufacturing and processing plants. The 27A normal duty rating supports 20HP motors, while the 22A heavy duty rating handles 15HP loads with 110% overload for 60 seconds, ensuring reliable operation under transient conditions.
Installation & Setup Guidance
Mount the open-type drive in a clean, dry electrical enclosure with adequate airflow. Ensure the input voltage matches 480 VAC three-phase or 650 VDC. The internal brake transistor simplifies dynamic braking setup. Note that the common mode jumper is removed by default; verify your system grounding requirements before reinstallation.
Maintenance & Reliability
Periodically inspect cooling fans and air filters to maintain thermal performance. Check all power connections for tightness and signs of overheating. The EMC filter helps reduce electrical noise, but verify compliance with local standards during commissioning.
Selection Guide & Purchasing Advice
When selecting a replacement or new drive, confirm your motor's power rating and duty cycle. For lifecycle status and availability, contact AutoDCSTech to ensure the right fit for your system.
Troubleshooting & Common Issues
If the drive trips on overload, verify that the motor current does not exceed 27A (ND) or 22A (HD) for extended periods. Check input voltage stability at 480VAC. For communication faults, inspect the control wiring and ensure proper shielding. Always refer to the user manual for detailed fault codes.
Availability & Condition at AutoDCSTech
| Part Number | 20F11ND027AA0NNNNN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
