About the difference between three-phase asynchronous motor YE3 and YE4

YE3 ultra-high-efficiency motor adopts high-permeability and low-loss cold-rolled non-oriented silicon steel sheet. It is the model promoted by the state to replace Y, Y2, Y3, and YX3 series motors. The stipulation of 2-level efficiency in the “Limited Values ​​of Energy Efficiency and Energy Efficiency Grades”, its efficiency index is consistent with the recommendation table (IE3) in Appendix A of IEC60034-31.

YE4 series ultra-high-efficiency three-phase asynchronous motor is a fully enclosed self-fan-cooled three-phase asynchronous motor developed and designed by our company. The efficiency index complies with the requirements of Class 1 efficiency in GB 18613-2012 “Limited Values ​​and Energy Efficiency Levels of Small and Medium-Sized Three-Phase Asynchronous Motors”, and its efficiency index is consistent with the recommendation table (IE4) in Appendix A of IEC60034-31.

YE4 ultra-high-efficiency three-phase asynchronous motor is one step more energy efficient than YE3 ultra-high-efficiency three-phase asynchronous motor and has higher efficiency, which is in line with GB 18613-2020 “Minimum and Medium-Sized Three-Phase Asynchronous Motor Energy Efficiency Limit Values ​​and Energy Efficiency Grades” issued on June 1. “Efficiency level 1 regulations;

At this stage, if the factory needs to replace the high-efficiency energy-saving motor, it is recommended to choose the energy-saving motor YE4 series high-efficiency three-phase asynchronous motor;