... , the 3-phase motors are designed for 230/400VAC, as of motor size 74, 400V for two speed level are available on request ... case, there are exceptions to the featuring insulation class "F", for higher ambient temperatures or operative ranges with higher pressures, there ... ---- seen from rotor side.clockwise ---- seen from rotor side.Accessories: For the fans, there are all kinds of accessories such as ...