20DR125A3NNNACAAE

The 20DR125A3NNNACAAE model is an adjustable frequency AC drive, part of the PowerFlex 700S series by Allen-Bradley. Designed to work with a three-phase system, this unit operates at an input voltage rating of 650V DC, supporting a maximum input current of 125 amps. The drive does not come with documentation, making it essential for users to understand its operational parameters.

Constructed with an IP20 enclosure that meets NEMA Type 1 standards, the device is built to function in various environments where basic protection against dust and contact is sufficient. The user interacts with the drive through a full numeric LCD interface, which provides clear information about its operation settings.

This model incorporates an IGBT braking system for controlled stopping, ensuring efficient performance during motor operations. Safety features include an adjustable bus undervoltage trip, allowing for tailored operational stability based on specific application requirements.

Thermal management is achieved via a heat sink thermistor that is continuously monitored by a microprocessor, ensuring operational safety by triggering an overtemperature trip if conditions become critical. The device supports logic control ride-thru for up to 0.25 seconds when the drive is not running, providing stability in the event of brief power interruptions. Additionally, it can maintain power ride-thru for 15 milliseconds at full load, ensuring motor functionality for short disruption periods, which enhances the overall reliability of this AC drive in varied industrial settings.