The Rockwell 20AD014A3AYNANC0 is model of frequency converter manufactured by Rockwell Automation. It is part of the PowerFlex 753 series of AC drives, used for variable frequency control of electric motors. 

Here are some key features and specifications of the Rockwell 20AD014A3AYNANC0 frequency converter:

1. Power Rating: The "014" in the model number indicates that it has a power rating of 14 kilowatts (kW). This means it can handle motor loads up to 14 kW.

2. Input Voltage: The "A" in the model number designates that it is designed to operate on a three-phase AC input voltage. The specific voltage range may vary depending on the variant of the model.

3. Communication: The "3" in the model number indicates that it has a standard embedded Ethernet/IP and RS-485 communication interface.

4. Control Modes: The frequency converter supports various control modes, including Volts Per Hertz (V/Hz) control, Sensorless Vector control, and Permanent Magnet Motor control.

5. Protection: It incorporates protection features such as motor over-temperature protection, drive over-temperature protection, and overvoltage/undervoltage protection.

6. Enclosure Type: The "AYN" in the model number indicates the enclosure type. The specific type may vary depending on the variant of the model.

7. Other Features: The frequency converter also includes built-in braking and dynamic braking capabilities, multiple parameter sets for easy configuration, and support for various feedback devices.