1.made of high quality materials. 2.used in air compressors,pumps,fans,refrigerators,medical instruments These motors are widely used in air compressors,pumps,fans,refrigerators,medical instruments as well as small machines,etc,expecially for occasion where only single-phase power supply is available. Ambient temperature: -15<θ<40. Altitude: notexceed 1000m. Rated voltage: 380V or any voltage ...