Axial high-performance fan, square mounting plate, inlet nozzle, directly driven, explosion-proof in accordance with ATEX. Square mounting plate with molded nozzle made of galvanized sheet steel. Impeller with 7 blades made of thermoplastic. High efficiency, low operating noise. Vibration-free operation due to dynamic balancing in accordance with quality level G 6.3 VDI 2060 and DIN ISO 1940. Can be used in the range from -20 °C to +40 °C. Surface resistance less than 1 GOhm. Three-phase squirrel-cage motor, closed design, maintenance-free, sealed, low-noise ball bearings with long-term lubrication, not adjustable. Ex version in accordance with ATEX.