YE3 series high-efficiency three-phase asynchronous motors are based on GB/T28575-2012's newly developed fully enclosed self-fan air-cooled squirrel cage ultra-high-efficiency three-phase asynchronous motors. The efficiency index of this series of motors reaches the level 3 energy efficiency grade in China's GB18613-2020 "Energy Efficiency Limits and Energy Efficiency Grades for Small and Medium-sized Three-phase Asynchronous Motors", conforms to IE3 in the energy efficiency grade in IEC60034-30, and is at the same level as the current US NEMA ultra-efficiency. Compared with YE2 series, YE3 series high-efficiency motors are more energy-saving, low-carbon and environmentally friendly. The installation size, power level and ordinary motor are exactly the same, in line with the International Electrotechnical Commission IEC60072-1 standards can be directly replaced to achieve the purpose of energy saving, power saving, easy to market. H160 and above motors with high center can be equipped with non-stop oil injection and drainage devices, and space is reserved for installing thermistors and moisture-proof heating tapes, which is convenient for users to choose. The series motor power range: 0.75KW-315KW; frame center height: H80-H355.