Here's some information about this inverter:

Manufacturer: ABB (formerly ASEA Brown Boveri)

Model: ACS550-01-05A4-4

Type: Variable Frequency Drive (VFD) or Inverter Drive

Power Rating: 5.5 kilowatts (kW)

Input Voltage Range: 380 to 480 volts AC (Three-phase)

Output Voltage Range: 0 to Input Voltage (Variable frequency and voltage output)

Control Type: Scalar or Vector Control

Enclosure Type: IP20 (Open chassis design)

Communication: Built-in RS485 Modbus interface for communication with external devices

Cooling Method: Built-in Fan

Application: The ACS550 inverters are typically used for controlling the speed and torque of three-phase induction motors. They are commonly employed in various industrial applications, such as pumps, fans, conveyors, mixers, and more.