GBD EC 450 – EC Centrifugal Fan – 3 Phase – Helios Energy-saving cubic ventilation box with intake and extract spigots, with flexible sleeves to reduce vibration transmission and variable applicable side panels to suit structural conditions. Simple positioning by standard crane hooks. Self-supporting frame construction made from hollow aluminum profiles. Lined with 20 mm thick double-walled side panels made from galvanised sheet steel, sound and thermally insulated with flame-retardant wool. Other accessories, wall bracket and outdoor cover hood. Product Data: Helios – GBW – GBD – EC
