20DD077A0NNNA2DCL

The part number 20DD077A0NNNA2DCL, produced by Allen-Bradley under the Rockwell Automation brand, represents an adjustable-frequency AC drive tailored for industrial applications. Designed primarily for three-phase systems, this drive operates at 480V AC and accommodates a maximum normal-duty current of 77 amps. This capability allows it to provide dependable power management within various machinery.

Encased in an IP20, NEMA Type 1 enclosure, this model is intended for indoor use, offering basic protection against dust and other environmental factors. The design is minimalist as it does not include any human-machine interface module; it has a blank cover, which simplifies integration into existing control systems.

Without a braking feature, the drive is streamlined for applications that do not require such functionality. It includes important safety features like an adjustable bus undervoltage trip. The unit's thermal monitoring is ensured by an internal heat sink thermistor, which is overseen by a microprocessor, activating an overtemperature trip if necessary.

For reliability during brief power interruptions, the logic control ride-thru is set to 0.25 seconds while the drive is inactive. Additionally, it offers a power ride-thru duration of 15 milliseconds during full load conditions, which enhances its performance in critical operations.