The W2E143-AA15-01 is a 115VAC Axial Fan with ball bearing and external rotor shaded pole motor, mounting from either face using two 46mm holes, terminal power connection. Die-cast aluminum coated in black housing and impeller of sheet steel coated in black. Exhaust over struts direction of air flow Counter-clockwise direction of rotation seen on rotor 2-flat Pin connectors Open coated in black rotor IP20 Protection rating 5 Blades V-Direction of air flow S1 Operation mode Class-B Insulation -40 to 80°C Permissible ambient motor temperature range