Electric moltor:Shaded pole type AC electric motor design Frame:High quality aluminum alloy outside frame Anti-corrosive and moisture proof structure Impeller:UL-0 70% PBT+30FRP. Bearing:self lubricating bearing and ball bearing Insulation:class B Insulation impedance:the case adds 500V DC to the coils,insulation impedance 100M¦¸ higher Dielectric strength:0.5mA 1500V/ACmin. Safety protection:Impedance protection Operating temperature:-10-+70¡æ Storage temperature:-40-+70¡æ |