The YFB3 series dust explosion-proof three-phase asynchronous motor is a fully enclosed self fan cooled high-efficiency three-phase asynchronous motor developed based on the YBX3 series motor and combined with new technologies in advanced products, processes, materials, and other aspects at home and abroad. It has the advantages of high efficiency and energy saving, large temperature rise margin, long service life, good performance, low noise, advanced explosion-proof structure, high reliability, and easy use and maintenance. The efficiency index of this series of motors meets the second level energy efficiency index of electric motors. Its power level and installation size are the same as YBX3 series motors, which is conducive to the matching use of export equipment and the replacement of existing equipment.