Efficiency classes for IEC line motors - Drive Technology - Siemens
The revised standard includes the following line-motors Number of poles 2, 4, 6, 8 Power range 0,12 – 1.000 kW Level IE1 - Standard Efficiency IE2 - High Efficiency IE3 - Premium Efficiency IE4 - Super Premium Efficiency Voltage < 1000 V, 50/60 Hz Degree ...