20DD500N3NNNB1CNK

The 20DD500N3NNNB1CNK adjustable frequency AC drive, developed by Allen-Bradley and part of the PowerFlex 700S series, is engineered for demanding industrial applications. This drive is specifically designed to operate with a voltage input of 480V AC while accommodating three-phase electrical systems. With an input current capacity of 500 amps, it is capable of meeting high energy demands.

The unit does not feature a protective enclosure, rated open/IP00, allowing for direct access to the components. A full numeric LCD provides users with important operational readouts, although no documentation is offered. The absence of a braking system simplifies the design for specific motor control tasks.

Safety features include an adjustable bus undervoltage trip, which helps safeguard the system against low voltage conditions. The heat sink thermistor enhances operational reliability as it monitors temperature levels via an integrated microprocessor, triggering a fault if overheating occurs. Furthermore, this drive incorporates logic control ride-thru functionality, which allows it to maintain operational status for 0.25 seconds when not actively running, thus providing stability. Additionally, it can sustain power ride-thru for 15 milliseconds at full load, ensuring that critical processes remain uninterrupted during brief power fluctuations.