The W2E143-AB15-01 is a 115VAC 29W Axial Fan with a wall ring, ball bearing, terminal power connection and 1-phase 2-pole motor with operating capacitor. Features include 294CFM and a noise level of 60dBA. Maaximum operating temperature is 70°C. External rotor shaded pole motor, mounting from either face using two 4.6mm holes, electrical connections via 2 flat pin terminals of 2.8 x 0.5mm. Counter-clockwise direction of rotation seen on rotor, air exhaust over struts air flow direction. Dimensions are 172mm dia. x 51mm