Siemens 6SE6440-2UD15-5AA1 Drive Filter Profibus

Siemens MICROMASTER 440 drive, model 6SE6440-2UD15-5AA1, is an unfiltered frequency inverter designed for 3‑phase 380–480 V systems and 0.55 kW (0.75 hp) output, suitable for constant‑torque applications. It accepts 3‑phase AC input at 380–480 V (+10/−10%), operates over a frequency range of 47–63 Hz, and provides overload capability of 150% for 60 s and 200% for 3 s; its compact enclosure measures 173 × 73 × 149 mm, offers IP20 protection, and an ambient operating range of −10 to +50 °C, shipped without AOP/BOP options. This MM440 variant is intended for reliable speed and torque control of small to mid‑sized motors in automation tasks requiring precise torque at low speeds.