EFF1, EFF2, EFF3, IE1, IE2, IE3, IE4, IE5 Motor Efficiency Class
Motor efficiency classes in different countries and the corresponding... | Download Table
CE/UL IEC Standard 1/3 Phase AC High Efficiency Squirrel-Cage Induction Electric Motor in 50Hz/60Hz High/Low Voltage Eff1/Eff2 Ie3/Ie4/Ie5 - China Electric Motor, AC Motor | Made-in-China.com
IE1, IE2, IE3, IE4 Efficiency Class Table | Electrical4u
IEC 60034-30-1 Efficiency Classes for Low Voltage AC Motors - AVSLD International
EFF1, EFF2, EFF3 motor table | Electrical4u
Motor Efficiency & Ratings Explained - Republic Manufacturing Blog