Driven by an external rotor motor built into the fan hub. Use where air flow against a high resistance is required. These fans are ideal where space is limited as no fan scroll is needed.
An inlet ring required on air intake side.
AC Centrifugal fans with Backward Curved Impeller Size Range:
133mm, 175mm, 180mm, 190mm, 220mm, 225mm, 280mm, 315mm, 355mm and 360mm diameters available.