Siemens 6SE6440-2UD21-5AA1 Micromaster 440

The Micromaster 440 from Siemens is a frequency converter, also known as a VFD, motor drive, or speed controller, with the type number 6SE6440-2UD21-5AA1. It is an electrical component from electrical engineering for converting mains current into variable frequency and voltage. It has the dimensions 19 x 10 x 17 cm and weighs 1.24 kg. Frequency converters are used to precisely control the speed and torque of electric motors, thereby optimizing efficiency and process quality in industrial applications. Typical areas of application include pumps, fans, conveyor systems, and compressors in mechanical engineering and automation technology.