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ACS320-03E-07A3-4

The ABB ACS320-03E-07A3-4 is a compact, single-phase input variable frequency drive (VFD) designed for small to medium motor control in commercial and light industrial applications. It is part of the ACS320 series, known for its ease of use, built-in connectivity, and space-saving design.

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Specifications Input Supply: 200–240 V AC (±10%), 1-phase, 50/60 Hz Output Power: 1.5 kW (2 hp) at 240 V Output Current: 7.0 A continuous Overload Capacity: 110% for 60 s every 300 s Output Frequency Range: 0–500 Hz Switching Frequency: 2–16 kHz (adjustable) 4. Physical & Environmental Data Enclosure Rating: IP21 (indoor use, protected against dripping water) Dimensions: 184 × 70 × 155 mm (H × W × D) Weight: ≈ 1.8 kg Cooling: Natural convection (fanless) Ambient Temperature: –10 °C to +50 °C (derating above +40 °C) Relative Humidity: < 95% non-condensing Mounting: Wall or DIN-rail (optional kit) 5. Control & I/O Features Built-in Communication: Modbus RTU via RS‑485 Digital Inputs: 2 (24 V DC, sink/source selectable) Analog Input: 1 (0–10 V / 0–20 mA configurable) Relay Output: 1 (250 V AC, 2 A) Analog Output: 1 (0–20 mA) Integrated Operator Panel: Potentiometer + Start/Stop/Reset buttons Pre-set Macros: Pump, Fan, Conveyor, Hoist, etc. PID Controller: Built-in for simple closed-loop control 6. Motor & Drive Protection Motor Protection: Overload (I²t), stall, phase loss, earth fault Drive Protection: Overvoltage/undervoltage, short circuit, overtemperature Safe Stop: Safe torque off (STO) option via external safety relay 7. Typical Applications Commercial ventilation fans Small water pumps and circulators Conveyors and light material handling Packaging machinery Compressors and mixers (light-duty)