What is meant by resistance classes 1 to 6?

Resistance classes classify capacity to resist burglary. They define how resistant windows and doors are to attempted break-ins. Burglar resistance classes are categorised according to the tools used by burglars and their expected break-in methods.

Resistance class 1: Opportunist burglars will try to break open windows or doors using physical force, e. g. by kicking, using their shoulder, prying them open, ripping them out.

Resistance class 2: Opportunist burglars will try to break open closed and locked windows or doors with the additional use of simple tools, such as a screwdriver or pliers.

Resistance class 3: Burglars will try to break open closed and locked windows or doors with the additional use of a second screwdriver and a crowbar.

Resistance class 4: The experienced burglar also uses sawing und impact tools, such as an axe, chisel, hammer or a battery-operated drill.

Resistance class 5: The experienced burglar also uses electric tools, such as a drill, a keyhole or sabre saw and an angle grinder with a maximum disc diameter of 125 mm.

Resistance class 6: The experienced burglar also uses powerful electric tools, such as a drill, a keyhole or sabre saw and an angle grinder with a maximum disc diameter of 250 mm.

EVVA can provide you with locking systems which are optimally suited for use in the highest category, resistance class 6.