Technical Characteristics: Frame Size (mm) 160-355 Output Power (kW) 7.5-355 Rated Voltage (V) 400 Frequency (Hz) 50 Speed (r/m) 3000, 1500, 1000 Number of Poles 2, 4, 6 Mounting B3, B35, B5, V1 Protection Class IP55 or above Insulation Class F or above Temperature Rise B Duty S1 Cooling Method IC411/IC416