Detailed Product Description Shaded pole motorHousing: Die-Cast Aluminum PaintedBlade: Aluminum .Insulation Resistance:10MΩ at 500VDC between lead and frame Dielectric Strength:1 min at 1500VAC/50-60HZ ,current5mA Operation Temperature: -20ºC80ºCOperation Humidity: 20%85%Working voltage:85V125V for 110V and 190V250V for 220VLife at 25ºC: Ball bearing 60,000hr and sleeve bearing 30,000hr