main motor for SINAMICS S120; 380 V 3 AC operating voltage 380 V 3AC Pn=3.7 kW; Nn=1500 rpm Mn=24 Nm shaft height 100 mm encoderless shaft with feather key, half-key balancing forced ventilation, direction of air flow DE->NDE, IP55 compatible with the converters SINAMICS S120 vibration severity S shaft extension and flange accuracy R power and signal port