... 1) IP 55 enclosure, IP54 availiable on request2) Class F insulation, Clsaa H available on request3) 230/400, 400/690 Volt ... system according to international practice, it enhances greatly motor's safety and reliability. These motors have reached an ... voltage: 220/380v,380/660vFrequency: 50Hz, 60Hz Protection class: IP44 ,IP54Insulation class: B,FMaterials: Cast iron, aluminum (FRAME 63-160 ...