This series of motors is a variable-pole multi-speed three-phase asynchronous motor produced by our company in accordance with the industry standard JB/T8681-2013. It is applicable to fans and pumps, which can change poles and speed according to the requirements of the load nature, thereby achieving reasonable power matching and simplifying the speed change series. It features high efficiency, large starting torque, low vibration, energy conservation and consumption reduction, and is widely used in industries such as machine tools, metallurgy, chemical engineering, textile, pharmaceuticals, and printing.