MS High Efficiency Three Phase Asynchronous Electric Motor Product introduction: Aluminium housing, aluminum front and back over, aluminum terminal box, aluminum feet which is removable. The installation position can be changed. Terminal box comes with power wire protection screw sleeve. Light-weight, high thermal conductivity, low noise, energy saving and beautiful appearance. Long service life, good sealing, oxidation resistance, corrostion resistance, which result in usage in humid environment no matter indoor or outdoor. Operation conditions: Ambient air temperature:-15ºC ≤ θ ≤ 40ºC Altitude: ≤1000m Rated frequency: 50Hz/60Hz Wiring method: Y wiring method for ≤3kw △ wiring method for ≥4kw Working type: S1(continuous working system) Insulation class: B Protection grade : IP54 or IP55