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The part number 20DD500A0ENNB1NNA is an adjustable frequency AC drive from Allen-Bradley designed for 480V AC operation. It supports three-phase systems with a robust input current rating of 500 amps.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Adjustable Frequency AC Drive |
| Product Line | PowerFlex 700S |
| Part Number | 20DD500A0ENNB1NNA |
| Weight | 250.00 lbs (113.40 kg) |
| Voltage | 480V AC |
| Phases | 3 |
| 480V Input Amps | 500 |
| Enclosure | IP20, NEMA Type 1 |
| Human Interface Machine | Blank Cover |
| Documentation | Quick Start Guide |
| Brake | No |
| Bus Undervoltage Trip | Adjustable |
| Heat Sink Thermistor | Monitored by microprocessor overtemp trip |
| Logic Control Ride-Thru | 0.25 sec., drive not running |
| Power Ride-Thru | 15 milliseconds at full load |
The 20DD500A0ENNB1NNA model form the Allen-Bradley PowerFlex 700S series serves as a flexible solution for various motor control needs. Operating effectively with an input voltage of 480 volts AC, the unit is optimized for three-phase applications. This drive can handle a significant current of 500 amps, providing ample power support for demanding industrial tasks.
Housed in an IP20-rated enclosure compliant with NEMA Type 1 standards, this drive ensures basic protection for its internal components while suitable for typical operating environments. Unlike some models, it does not feature a braking system; however, safety is enhanced through an adjustable bus undervoltage trip, allowing users to customize settings according to their specific requirements.
The heat sink thermistor continuously monitors temperature through a microprocessor to prevent overheating, contributing to the unit's reliability and longevity. In terms of operational resilience, the drive can maintain logic control ride-thru for 0.25 seconds when not actively running and sustains a power ride-thru of 15 milliseconds at full load, ensuring continued performance during brief power disruptions. Additionally, a quick start guide is included to facilitate setup and configuration, even though it has a blank cover for user interaction.
| Revision Part # | Also known as | |
|---|---|---|
| 20DD500A0ENNB1NNA Ser A | 20DD500A0ENNB1NNA/A, Series A, Rev A | |
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