Here is a breakdown of the product code ACS550-01-04A1-4:

ACS550: This identifies the inverter as part of the ACS550 series.

01: This refers to the drive's frame size or physical dimensions.

04A1: This indicates the drive's rated current. In this case, 4A.

4: The number 4 represents the voltage rating of the drive, which is typically specified in the product documentation.

The ACS550 series is commonly used in HVAC (heating, ventilation, and air conditioning), water and wastewater, and general-purpose applications. It provides reliable motor control, energy efficiency, and user-friendly operation.