
ABB ACH550-UH-045A-4 | 3AUA0000011032
ABB ACH550-UH-045A-4 | 30 HP HVAC VFD, 480 V, 45 A, NEMA 1 Enclosure Global Commercial Alias: ACH550-UH-045A-4Product ID: 3AUA0000011032ABB Type Designation: ACH550-UH-045A-4Catalog Description: HVAC AC Drive, 3-phase, 30 HP, 45 A, 480 V, NEMA 1 enclosure Overview The ABB ACH550-UH-045A-4 is a high-performance variable frequency drive engineered specifically for HVAC systems. With 30 HP output, 45 A current capacity, and 480 V input voltage, it provides efficient and precise control of fans, pumps, and air handlers in building automation. Key Features Motor Power: 22 kW (30 HP) Input Voltage: 380–480 V AC, 3-phase Output Current: 45 A Frequency Range: 0 to 500 Hz Control Modes: Scalar (V/f), Sensorless Vector Overload Capacity: 110% for 60 seconds (light duty) EMC Filter: Integrated (C2 compliant) Safety Function: Safe Torque Off (STO) Communication: Built-in Modbus RTU, BACnet MS/TP, N2 User Interface: HVAC control panel with intuitive LCD Enclosure: NEMA 1 (UL T