... magnetic steel 4. Reliable Drawings and Parameters of High Efficient Permanent Magnet Generators 2.5kw~4kw PowerVoltage50Hz SpeedCurrentPower FactorEfficiencyRated TorquePeak TorqueFrameLengthWeight2.5 ... : IP44,avoid water, mud, dusty getting into the motor, long life, especially suitable for carriage.No field winding,The rotor is high ...