Systemair K / K EC – centrifugal fans for circular ducts

The Systemair K / K EC metal centrifugal fans, designed for installation in circular air ducts, are equipped with centrifugal impellers featuring backward-curved blades and external rotor motors. The housing of the Systemair K duct fans is made of galvanized steel sheet and meets airtightness class C according to EN 12237. Thanks to the fan casing’s enhanced airtightness, an IP55-rated electrical terminal block, and an M20 cable gland with IP68 rating, these fans can be used outdoors without a protective canopy. The fans have a corrosion class of C3.

The Systemair K EC fans are 100% controllable via a 0–10 V signal; they feature an integrated potentiometer in the terminal block that is preset to a value between 6 and 10 V.