The motors feature internal cooling ribs, which enable different types of cooling and mounting positions. Many different cooling methods are available both in open and enclosed types with natural or separate ventilation. The portfolio includes water-cooled types with cooling jackets or air-to-water heat exchangers.
The motors are optimised for inverter operation and, in particular, for Sinamics low-voltage inverters. This way, Siemens is able to offer an efficient complete system with a high power density, low installation volume, and low noise level.
As the motor rated currents are adapted to the inverter output currents and the motor is dimensioned for the rated pulse frequency of the inverters, over-dimensioning of the inverter is avoided. Gear units are also available for the new Simotics FD range.