20DC205A3NNNA1NNA

The part number 20DC205A3NNNA1NNA from Allen-Bradley is categorized as an adjustable frequency AC drive. Capable of handling three-phase applications, this model operates efficiently at a voltage of 400V AC. Its normal-duty current rating is notable at 205 amps, making it suitable for demanding applications requiring substantial power.

This AC drive comes encased in a solid IP20 housing that meets NEMA Type 1 standards. This design offers reasonable protection in less harsh environments. Interaction is facilitated through a full numeric LCD, allowing users to monitor and adjust settings conveniently. However, it should be noted that no documentation is provided with the unit.

Not equipped with braking capabilities, the drive includes an adjustable bus undervoltage trip function, assisting in safeguarding the system from improper operating conditions. The heat sink thermistor is monitored by a microprocessor to prevent overheating; it activates an overtemp trip if exceeding safe limits. This functionality helps maintain reliability and prolong the life of the unit.

In terms of operational resilience, the drive offers a logic control ride-thru time of 0.25 seconds when not actively running. Additionally, it can maintain power ride-thru for 15 milliseconds while under full load, ensuring continuous operation during brief interruptions. This versatility and robustness make the 20DC205A3NNNA1NNA a valuable component in various industrial settings.