... efficiency, less comsuption, high starting torque,low noise, little vibration. Series Three-Phase Asynchronous Motors Y Specifications:1) Frame sizes: 250 ... downwards, "D" type for 4kW and upwards14) Ambient temperature: -40°C < θ < 40°C15) The altitude should be lower than 1,000m ... %17) Special motors can be designed according to customers' requirements Series three-phase asynchronous motor Y