Allen-Bradley 20DD156A3NNNACGNE PowerFlex 700S AC Drive 20D

Designed for demanding applications, the 20DD156A3NNNACGNE is an adjustable-frequency AC drive from the PowerFlex 700S series by Allen-Bradley. This unit operates effectively on a three-phase input at 480 volts AC and can manage a substantial current load of 156 amps, enabling it to cater to a variety of industrial motor control needs.

The drive is housed within an IP20-rated enclosure that adheres to NEMA Type 1 standards, making it suitable for indoor usage while safeguarding against dust and minor contact. A built-in full numeric LCD display facilitates user interaction and allows for easy monitoring of system performance.

This model does not come equipped with a braking system, yet it features an adjustable bus undervoltage trip to protect against voltage drops. A heat sink thermistor actively monitors thermal conditions, and a microprocessor oversees performance to activate an overtemperature trip if necessary.

For operational continuity, the 20DD156A3NNNACGNE drive has a logic control ride-thru of 0.25 seconds available when the device is not in run mode, preventing loss of settings during brief interruptions. Additionally, it can sustain power for 15 milliseconds at full load during abrupt voltage changes, ensuring stable operations even under variable conditions.