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ACS355-03U-44A0-4

The ABB ACS355-03U-44A0-4 is a compact, high-current 44 Ampere, 22 kW (30 HP) variable frequency drive from the ACS350 series platform. Engineered as a robust general-purpose drive, it is suitable for demanding industrial applications including pumps, fans, conveyors, and mixers.

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Key Specifications Parameter Category Specification Drive Series/Model ACS355-03U-44A0-4 Rated Output Current 44 A Rated Output Power 22 kW (30 HP) Input Supply Voltage 380 - 480 V AC (± 10%), 3-phase Input Supply Phases 3-phase Output Voltage 0 - Input voltage Output Phases 3-phase Enclosure Rating IP00 (Open Chassis). Must be installed inside a protective control cabinet (e.g., IP20, IP54). Control Panel Removable Control Panel (RCP) supplied separately for remote mounting. Cooling Method Self-cooled (with internal fan) Control Methods • Scalar Control (V/f) for standard applications. • ABB Direct Torque Control (DTC) for high dynamic performance (accurate speed/torque control, fast response). Key Standard Features • High Power Density: Compact size for its power rating. • Removable Control Panel (RCP): Backlit LCD with parameter copy function (supplied separately). • Built-in EMC Filter (Class A). • Application Macros: Pre-programmed parameter sets for common tasks (Factory, Hand/Auto, Pump/Fan). • Built-in PID Controller with sleep/wake function. • Flying Start and DC Magnetization. • Built-in I/O: 2 analog inputs, 1 analog output; 3 digital inputs, 1 relay output. • Fieldbus Connectivity: Built-in Modbus RTU (RS-485); optional adapters for PROFIBUS DP, DeviceNet, CANopen, etc. Protection Features • Motor thermal overload protection (I²t) • Short circuit, ground fault, overcurrent, and overvoltage protection • Motor stall and underload protection • IGBT overtemperature protection • Power loss ride-through Application Focus General-purpose industrial machinery (Pumps, Fans, Conveyors, Mixers).