Siemens 6SE6440-2UD27-5CA1 SIRIUS Soft Starter

Siemens 6SE6440-2UD27-5CA1 MICROMASTER 440 frequency inverter (without filter) provides precise, variable-speed drive for 3‑phase motors on 380–480 V systems, enabling smooth acceleration, deceleration, and torque control in compact panels. The unit fits a 245 x 185 x 195 mm footprint with IP20 protection and operates from a 47–63 Hz supply, tolerating ambient temperatures from -10 to +50 C, making it suitable for factory floors, machines, and process equipment. Key performance values include a nominal power rating of 7.5 kW and robust overload capability—150% for 60 seconds and 200% for 3 seconds—allowing extended start-ups and stall conditions without immediate shutdown. Typical applications span conveyors, fans, pumps, and material-handling equipment where reliable speed control, energy efficiency, and coordinated drive performance improve process stability and overall system productivity.