20G21RC8P7JA0NNNNN

The Allen-Bradley 20G21RC8P7JA0NNNNN motor control drive is a PowerFlex 755TS series drive with variable frequency. It supports patented Allen-Bradley TotalForce motor control technology and it relies on forced air cooling to operate without overheating. This cooling method requires a minimum rate of airflow for proper heat dissipation. The airflow rate depends on the drive’s frame size, and the 20G21RC8P7JA0NNNNN drive has a frame size of Size 1. The required minimum rate of airflow for this drive is 50 CFM. The ambient temperature around the drive will exceed the recommended limits and potentially damage the drive if the required airflow rating is not provided. The specified ambient temperature range for this drive is from -20 to 50 degrees Celsius. The 20G21RC8P7JA0NNNNN drive output derates if the ambient temperature goes above 50 degrees Celsius. The maximum permitted ambient temperature with derated performance is 60 degrees Celsius.

Allen-Bradley does not recommend operating the 20G21RC8P7JA0NNNNN PowerFlex 755TS series motor control drive at temperatures that exceed 60 degrees Celsius. The specified storage temperature for all PowerFlex 755TS drives is -40 to 70 degrees Celsius. The 20G21RC8P7JA0NNNNN drive works with DC or AC input. It includes DC terminals and the DC input rating is 540 Volts DC. The AC input rating is 400 Volts AC. The current output rating is 8.7 Amps. The output power depends on the drive’s operating mode and other factors. In normal duty operation, the 20G21RC8P7JA0NNNNN drive delivers 4 kilowatts of output power. In heavy-duty operation, the 20G21RC8P7JA0NNNNN drive delivers 2.2 kilowatts of output power. There is no HMI module installed on the drive. However, a digital LCD screen and a keypad on the front panel allow the operators to monitor the drive.