Roller shutter systems made of AER44/S and AER55/S extruded profiles when used together with GR60×21/S and GR75×27/S reinforced guide rails are certified for Р3 and Р4 break-in protection classes according to GOST R 52502-2005, GOST R 52503-2005, STB 51.2.03-2000. This enables installation of roller shutters in sites with strict requirements to break-in protection (banks, shops, offices).