A9225
AC 9225 92*92*25mm Big Air Flow Low Noise AC Axial Fan
The total noise level of the fan is proportional to the sixth power of blade speed. Based on analysis, the fan noise source is primarily dipole in nature and caused by blade interaction with upper air pulses flowing through the fan. Two discrete frequency noise sources can be identified: propeller-type noise generated by rotor blade pressure fields and blade pulse dynamic noise resulting from aerodynamic interference.
Peculiarity:
low noise, max air flow
Construction:
Die-cast aluminum housing
Glass fiber reinforced plastic: Impeller and housing PBT are UL 94V0
rating
Impedance protected
Leader wire or terminal is available
Operating temperature:
Ball bearing: -30℃to +75℃
Sleeve bearing: -10℃to +70℃
Insulation resistance:
10 meg ohm mina 500VDC(Between frame and terminal)
Dielectric strength:
5mA max at 500V AC 60HZ one minute(Between frame and terminal)
Bearing system:
Ball bearing or sleeve bearing