ClimaSys CV axial motor fan. 230V 50Hz or 60Hz. Free flow with standard filter of 300 m3/h at 50 Hz and 350 m3/h at 60 Hz. Cut-out dimensions of 223 x 223 mm. Outlet grille in injected thermoplastic (ASA PC), grey RAL 7035. Connections terminals through faston connectors. 2 protection grilles on the front and rear. Protection class IP54.