The 4606ZH is a 115VAC Axial Fan with ball bearing and speed signal, die-cast aluminum housing and painted sheet steel impeller, protection against moisture, protection against salt fog, external rotor shaded-pole motor and impedance protected against overloading, terminal power connection. Axial compact fan is suitable for high air performance with moderate pressure build-up. The flow of air through the fan blades is parallel to the rotation axis. Noise 45.0 dB(A) Power (Watts) 18.00W RPM 3100 RPM Termination 2 Terminals and 3 Wire Leads Operating Temperature -40 ~ 185°F (-40 ~ 85°C) Exhaust over struts direction of air flow Counter-clockwise direction of rotation seen on rotor 2-flat Plug connectors 2.8 x 0.5mm grounding lug for M4 x 8 IP68 Protection rating