1,High efficiency, Energy-saving 2,Low noise, Little vibration 3,Power supply 380V, ... , Electrical apparatus for explosive gas atmosphere>, and GB3836.2d", Electrical apparatus for explosive gas atmosphere> .These motors ... :380V,660V,380V/660VRated frequeney :50HzProtection class:IP55Cooling method :IC411Work mode:S1Insulation class:F YB2 series electric motor chemical product ...