Caryaire Propeller Fan comes with a Multi-Blade Propeller Fan with External Rotor Motor of Class F Insulation for 50Hz applications. The Motor comes in multiple types of Poles for various needs. Available in 1/3 Phase power supply. The attractive Fan is Black color, made from min 16 Ga Steel sheet. The fan has a wire guard for Protection (at air inlet in CP-E & CP-HE series and at air outlet in CP Series).