Specifications Parameter Category Specification General Information Manufacturer / Series Schneider Electric / Altivar 310 Model / Part Number ATV310HU75N4A Product Type Variable Frequency Drive for Pumps & Fans Power Characteristics Rated Output Power 0.75 kW (1 HP) Output Current 2.1 A (continuous rated current) Overload Capacity 110% of rated current for 60 seconds (typical for light duty cycle). Input Supply 3-Phase, 400V - 480V AC (±10%), 50/60 Hz Input Current ~1.8 A (at 400V, full load) Output 0 - Input Frequency, 3-Phase, 0 - 480V (PWM) Output Frequency Range 0.5 Hz to 599 Hz (typically limited to motor rating) Control & Performance Control Modes Scalar (V/f) with multiple preset curves (linear, quadratic for pumps/fans). Optional Sensorless Vector Control for improved low-speed torque (depending on firmware). Switching Frequency Adjustable, typically up to 16 kHz (may affect derating). Motor Control Features Energy optimization, automatic voltage adaptation, flying start, DC injection braking. Protection Features Motor thermal overload, short-circuit, ground fault, phase loss, overvoltage, undervoltage. Communication Integrated Ports Built-in Modbus (RS485) via removable terminal block (RJ45 style). Physical & Environmental Enclosure / Protection IP20 (open chassis type, for mounting inside a protected electrical cabinet). Cooling Method Natural convection (fanless at this power rating). Operating Temperature -10°C to +50°C (with derating above 40°C). Storage Temperature -25°C to +70°C Relative Humidity 5% to 95% (non-condensing) Altitude Up to 1000m without derating. Derating required above 1000m. Standards & Approvals EMC Standards Complies with IEC 61800-3, suitable for first and second environments. Safety Standards UL, cUL, CE marked.