AL ac motor 1.Power:0.09kw-18.5kw 2.voltage:220V,380V, ... .Protection class:IP55 4.Frequency:50hz&60hz Aluminium three phase ac motor ,with newest design in entirety,are made of selected quality ... (by resistance method). Protection class: The main body of the motor IP54The terminal box IP55Cooling method: ICO141 (cooled by SELF-FAN ... humidity: less than 90% . YL-M series Aluminium three phase ac motor