An example of a highly efficient drive system with efficiency class IES2 is the new synchronous inductance drive system with SIMOTICS reluctance motors and SINAMICS drives. More information is available on the Internet at
http://www.siemens.com/drivesystem-reluctance 
http://www.siemens.com/simotics-gp 
http://www.siemens.com/simotics-sd

Power loss data of SINAMICS converters for single-axis drives are available on the Internet at
https://support.industry.siemens.com/cs/document/94059311

More information on current laws and standards, new standards, and mandatory guidelines is available on the Internet at
www.siemens.com/legislation-and-standards