YE4系列（IP55）超超高效率三相异步电动机（机座号80～355）（以下简称：电动机）是效率达到国际标准IEC 60034-30《单速三相笼型感应电动机效率分级》最新版本中的IE4效率要求的低压全封闭自扇冷式超超高效率鼠笼型三相异步电动机，其效率值完全达到国家《中小型三相异步电动机能效限定值及能效等级》标准GB18613 中的能效1级要求，为目前全球最高效率的标准，效率由测量输入-输出功率的损耗分析法确定（按GB/T 1032-2012中11.3的规定）。
YE4 series (IP55) ultra-high efficiency three-phase asynchronous motor (frame size 80 ~ 355) (hereinafter referred to as: motor) is the three-phase squirrel cage asynchronous motor with efficiency of IEC60034-30 international standard in latest version of IE4 of "single speed three-phase cage induction motors efficiency classification" . Its efficiency value completely reaches the class 1 energy and efficiency standard of GB18613 in “Middle and Small Three-phase Asynchronous Motor Energy and Efficiency Limit and Classification” which is the highest standard. Its efficiency is determined by analysis method of measuring the loss of input and output power, (confirm to regulations of 11.3 in BG/T1032-2012)
The motor is widely used in many fields in national economy, such as machine tools, water pump, blower, compressor, as well as to be used in the field of transportation, mixer, printer, agriculture machinery, food etc.
Motor’s mounting dimension and power rating completely confirm to international IEC standards, and are accordance with German DIN42673 standard. The frame protection class is IP55, cooling method is IC411, continuous working duty is S1, class F insulation is adopted, but the temperature rise is assessed according to class B standard, noises on-load is examined according to the requirements as well.