Product Description Size of the fan: 120*120*38 mm Specification Nominal Voltage: V AC 24/115/230/400(50/60Hz) Voltage Range: V AC 85...420 Nominal Speed: Min-1 2350...2600 Max. Flow rate: M3/h 140...160 Max. Flow rate: CFM 82.6...94.4 Noise free air: D B(A) 42...47 Power consumption: W 22 Service life(70centigrade) / (40centigrade) h 25 000 / 50 000 Bearing system: Ball bearings / Sintec-Sleeve bearings Fan housing / impeller: Aluminum alloy / PBT Electrical motor: Shaded pole Motor structure. Impedance protect Protecting grade: IP 54 Mass: G 505