3-phase external rotor motor in EC technology. Dynamically balanced rotor with 4-pole, plastic-enclosed ferrite magnet. Integrated operating electronics with high-performance microcontroller. Excellent control behaviour with digital 4-Q PI controller. High efficiency through FET output stage. Analogue setpoint input. Operating mode selection (direction of rotation, braking and freewheeling) via 2 control inputs. Overload protection with integrated, speed-dependent current limiting. Customer-specific version possible by means of adapting software and hardware (e.g. fixed speed, direction of rotation).