AC axial fans are used when DC voltage is not available and are designed to create airflow with a high flow rate and medium pressure. Axial fans have an impeller surrounded by blades which works in a similar way to a propeller. The motor of the fan is integrated into the hub of the impeller to provide a compact fan unit. The impeller draws in air axially in a parallel direction to the revolving motor shaft and forces air out in the same direction. The axial fan is surrounded by a flanged housing with mounting holes allowing it to be mounted inside equipment. High product quality Can be operated at 50 or 60Hz Long service life Sturdy construction Terminal power connection IP20 protection rating Noise 51.0 dB(A) Power (Watts) 18.00W RPM 3100 RPM Termination 2 Terminals Operating Temperature -40 ~ 194°F (-40 ~ 90°C) Voltage - Rated 115VAC Size / Dimension Square - 119mm L x 119mm H Width 38.00mm