Starting 1 July 2021: more stringent minimum efficiency requirements for electric motors and frequency converters

Minimum efficiency requirements for electric motors Starting 1 July 2021

Required from 1 July 2021:

  • Efficiency class IE2 (or better) for electric motors with nominal power of 0.12 kW up to 0.75 kW
  • Efficiency class IE3 (or better) for electric motors with nominal power of 0.75 kW up to 1 000 kW
  • Efficiency class IE2 for variable-frequency drives rated for operation with motors with nominal output power of 0.12 up to 1 000 kW

More information is available on the Standards & regulations page at www.topmotors.ch