Siemens Sirius 3RT1044-1AK60 NSNBC01 is a three-pole power contactor for AC-3 motor control, rated for 65 A at 400 V and capable of switching up to 30 kW. It uses a 110 V AC coil (50 Hz / 60 Hz variants) and provides three normally open main contacts (3NO) with screw-terminal connections suitable for 3‑phase loads. This size S3 unit measures 146 mm high, 70 mm wide, and 139 mm deep, mounts on 35 mm and 75 mm standard DIN rails, and carries IP20 protection on the front. With a mechanical life of up to 10,000,000 switching cycles, it is designed for durable, repetitive operation in industrial applications.
