YS series full-sealed self-ventilating, cage three-phase small power asynchronous engine has the protection rank is IP44, the insulation is B level. This series motor is used in the general places where are not contain flammable, explosive gas and no speacial demmands machinery. Example: Metal-cutting machine tool, pump, air blower, the transport machine, pulsator machine, the farm machinery, the food machinery ect.