Siemens 6SE6440-2UD32-2DA1 NSNBC01 Soft Starter

Siemens MICROMASTER 440 drive, model 6SE6440-2UD32-2DA1 NSNBC01, is a 3‑phase variable-frequency drive designed to provide smooth starting and precise speed control for industrial motors. This 22 kW unit accepts 3‑phase power from 380–480 V and delivers controlled output to match motor load, making it suitable for mid‑sized industrial applications. This variant is specified as "without filter" (no line filter integrated), which can influence EMI performance and may necessitate external filtering in installations with strict conducted emissions. The NSNBC01 designation places it within Siemens' MM440 family for reliable torque, acceleration, and braking control in automation panels.