The HCM-N series of circular plastic axial fans are designed to be mounted in windows or walls for the direct extraction of air to the outside environment. The HCM-N series are available in 3 nominal model sizes 150, 180 and 225.
HCM-150 Extraction rate: 400m3 per hour. (110l/s)
HCM-180 Extraction rate: 600m3 per hour. (165l/s)
HCM-225 Extraction rate: 900m3 per hour. (250l/s)

HCM-150 Mounting hole size: 183-188mm
HCM-180 Mounting hole size: 220-225mm
HCM-225 Mounting hole size: 262-276mm

Physically, the OUTSIDE diameters are as follows:
HCM-150 214mm
HCM-180 255mm
HCM-225 298mm

All models include 1ph 230V 50hz motors, inlet finger guards and integrated louvre backdraft shutters as standard.
All models are suitable for use with S&P electronic speed controllers and installation accessories.
Download specifications HERE
Please note sound levels in the PDF are given in dB at 1.5 meters, for 3 meters subtract six.