For active ventilation of Rittal 800 mm wide VX/TS IT racks Colour: RAL 7035 (Grey) Dimensions: 550 x 42 x 340 mm (W x H x D) Air throughput: 400 m³/h (unimpeded air flow), 280 m³/h (at operating point) Sound pressure level: 46 dB(A) Power consumption (watts): max. 43 W Includes: - 1 fan unit - 2 fans (can be expanded up to max. 6) - Fully wired with C13 IEC socket ready for connection Please note: when using the roof fan in closed racks with glass doors, an air inlet must be in place. Either through a ventilated base or a side air inlet grille.