External wall fan, suitable for external wall mounting for ventilation of small and medium-sized rooms of all types, in the residential, commercial and industrial area. Weather-proof housing in compact design, made of galvanized steel sheet, powder-coated, alpine white. Connection supports according to standard pipe diameter, solid base plate made of plastic also enables mounting on uneven surfaces. Exhaust-side bird protection grid and 2 locking lamellae with spring return. Impeller: Energy-saving radial impeller with backward curved blades made of high-quality plastic. Dynamically balanced for low-noise operation. Drive: Maintenance-free, closed, ball-bearing motor with moisture protection and thermal overload protection in the winding. Power control: Continuously variable by means of electronic speed controller ESU1/ESA1 (Product No.: 0236/0238) or transformer speed controller TSW 1.5 (Product No.: 1495). Electrical connection: Flush-mounted from the rear or wall-mounted side possible.
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