Siemens MICROMASTER 440 6SE6440-2AD23-0BA1 is a 3 kW, 3-phase frequency inverter designed for 380–480 VAC input with an integrated Class A EMC filter, delivering 0–650 Hz output for precise motor speed control. It accepts 3-phase 380–480 VAC (±10%), with a supply frequency range of 47–63 Hz, and provides 0–650 Hz output on the 3-phase motor circuit. Overload capability is 150% for 60 s and 200% for 3 s, with constant torque power rated at 3 kW. Enclosure is IP20, ambient temperature range -10 to +50 °C, and frame size B with dimensions 202 × 149 × 172 mm.
