Type 7F.20 Filter Fans for cabinets and switchboards with nominal voltage 120 or 230 V AC. Nominal power 17 W, size 1. Reduced installation and maintenance times. Design by MINELLI | FOSSATI. Features include: Extremely low noise Compact Air volume 24, 55 and 100m3/h (free flow) Internal filter easily replaceable Allows an air volume of 24 m3/h (with exhaust filter installed in the cabinet/electrical panel). Air Flow 147 CFM CGM Brand FINDER Grille Material Plastic Grille Size 255x255 mm Manufacturer Part Number 7F.20.9.024.4250 Mounting Hole Size 223x223 mm Numeric ID 2510423 Series 7F Series Voltage Rating 24 V dc