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ACH550-UH-045A-4

The ABB ACH550-UH-045A-4 is a high-performance HVAC variable frequency drive engineered for demanding heating, ventilation, and air conditioning applications. This model features enhanced capabilities for large commercial and industrial building systems requiring robust control and advanced functionality.

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Specifications Electrical Ratings Input Voltage: 380-480V AC (±10%), 3-phase, 50/60 Hz Output Power: 22 kW (30 HP) at 480V Output Current: 45.0 A continuous (40°C ambient) Overload Capacity: 110% for 1 minute every 10 minutes Output Frequency Range: 0-500 Hz Control Methods: V/Hz, Open/Closed Loop Vector, Direct Torque Control (DTC) Physical Characteristics Enclosure: IP21 (indoor industrial) Dimensions: ~450 × 220 × 240 mm (H×W×D) Weight: Approx. 16 kg Cooling: Intelligent forced-air with temperature monitoring Ambient Temperature: -15°C to +50°C (derating above +40°C) Relative Humidity: 5-95% non-condensing Altitude: Up to 1000 m without derating Compressor Management: Screw/scroll compressor protection Oil management timers Anti-recycle and minimum off timers Load/unload sequencing Energy Management Energy Optimizer: Reduces motor losses by up to 40% Adaptive Control: Self-tuning PID for varying system conditions Power Factor: >0.98 displacement factor Harmonic Mitigation: Built-in DC choke (optional) Peak Demand Management: Power limiting function Control & Connectivity I/O Configuration Digital Inputs: 6 programmable (24V DC, optical isolation) Digital Outputs: 4 (2 relay, 2 transistor) Analog Inputs: 3 (0-10V/0-20mA/PT1000, 14-bit resolution) Analog Outputs: 2 (0-20mA/4-20mA) Thermistor Inputs: 2 (PTC/KTY)