KVRI-EC - Duct fan

Duct EC fan for ventilation networks with a compact, galvanized steel casing and sound-absorbing lining. Equipped with 20 mm standard flanges for easy mounting in air ducts, supporting both horizontal and vertical installation. The fan features an efficiency-optimized impeller with backward-curved blades, driven by a high-efficiency EC motor. The impeller and motor are dynamically balanced to G6.3 (DIN/ISO 1940) standards. A swing-out fan section allows easy cleaning, making it suitable for slightly polluted air. The closed EC motor includes maintenance-free, lifetime-lubricated ball bearings and integrated thermal protection monitored by motor electronics, with status feedback via relay contact. Electrical connection is through the casing-mounted terminal box.