The three phase motors DRIVE-AX series, closed, without ventilation or forceventilated according to the different sizes, manufactured according to the main international and harmonized standards and to the IEC 34 rules , are available in the sizes 63,80,100,132, 160 and 200. They are manufactured with aluminium extruded frame (63 e 80 sizes ) or fully laminated stator in the bigger sizes and they have IP 54 protection level and class H insulation .They are fundamentally destined to Frequency Converter supply running in those modern applications where high speed and dynamics are needed.