Dimensions and technical details 230 Volt ~ 50 Hertz Sound-dampening box designed for supply and extraction of air in areas that require quietness Housing material: galvanised steel sheet, lined with 50 mm heat-resistant melamine plates (DIN EN 13501) Nominal diameter: 200 mm Max. power: 133 W Max. current consumption: 0.6 A Max. revolultions per minute: 1811 Max. airflow: 640 m³/h Speed levels: 1 (optional speed controllers sold separately) Total pressure Pmax.: 424 Pa Sound pressure level Lp-3m: 31 dB(A) Temperature range for continuous operation: -15°C to +50°C Protection code: IPX4 Insulation class: I Weight: 22kg Thermal overload protection Dynamically balanced centrifugal impeller made from galvanised steel, blades curved forward Mounting options: horizontal, can also be inserted into suspended ceilings Mounting holes on the body allow for easy installation Top cover can be removed for cleaning and maintenance Impact-resistant terminal box made from plasticOptional accessories are available in our shop.