Ventilators with air flow up to 1770 m3/h into circular ducts for diameters 100 - 315 mm. The throats are gasketed, the enclosure consists of a patented vector noise absorber and a noise absorbing layer.
The fans are made of plastic (TD 250 - 1000) or galvanized steel sheet (TD 1300, TD 2000) and are equipped with a 230 V / 50 Hz single-phase motor with thermal fuse. The fans are IP44 rated and suitable for operation at air temperatures up to 60 °C.
A version with integrated adjustable timer (T) is available.