20DD38520NNNBNNNN

The Allen-Bradley 20DD38520NNNBNNNN is an adjustable frequency AC drive designed to provide versatility for heavy-duty applications. This model operates efficiently at a voltage of 480V AC and is configured for three-phase systems, accommodating a normal-duty current of up to 385 amps. Such capacity makes it particularly suitable for demanding industrial tasks.

The drive is housed in an IP20 enclosure, which adheres to NEMA Type 1 standards and provides protection for internal components in typical indoor environments. It is designed with a blank cover for the human-machine interface option, simplifying its integration into existing systems.

This device is built explicitly without a braking feature. However, it can be advantageous in operations where additional braking is not necessary. It supports an adjustable bus undervoltage trip to protect the system from voltage drops. The integrated heat sink thermistor is monitored by a microprocessor that activates an overtemperature trip as needed, promoting reliability and safety during operations.

For operational stability, the logic control ride-thru feature allows for a retention period of 0.25 seconds while in an idle state, ensuring that essential settings remain intact. In conditions of full load, it can maintain power for up to 15 milliseconds, effectively providing a buffer during brief interruptions. Overall, the 20DD38520NNNBNNNN drive offers essential functionalities beneficial for modern automation needs.