ClimaSys CV axial motor fan. 24V DC 50Hz or 60Hz. 3.6W 50Hz. Free flow with standard filter of 58 m3/h at 50Hz. Cut-out dimensions of 92 x 92mm. Outlet grille made of injected thermoplastic (ASA PC), grey RAL 7035. Connection terminals via cable. 2 protective grilles on the front and rear. Protection class IP54.