The recommended installation site of the burglar-resistant component is divided into three groups A (residential properties), B (commercial properties, public properties) and C (high-risk commercial properties and public properties).

Resistance class	Expected burglar type Suspected burglar behaviour	Installation site A	Installation site B	Installation site C
RC 1	Components in resistance class 1 have basic protection against attempts to break in using physical force such as two-footed kicks, shoulder pushes, lifting upwards and pulling out (primarily vandalism). Components of resistance class 1 only offer limited protection against the use of lever tools.	*	*	*
RC 2	Occasional burglars also use simple tools like screwdrivers, pliers and wedges to try to break into locked and bolted building components.
RC 3	Burglars also use a second screwdriver, pliers and wedges to try to break into locked and bolted building components.
RC 4	Experienced burglars also use a saw and striking tools such as a hand axe, crowbar, hammer or chisel as well as a cordless drill.
RC 5	Experienced burglars also use power tools such as a power drill, a sabre saw, a reciprocating saw and an angle grinder.
RC 6	As with resistance class 5, burglars use power tools with a high wattage.

*If burglary prevention is required, the use of resistance class RC 1 is only recommended for components to which no direct access (no ground-level access) is possible.

(No tool test)

Low risk

Medium risk

High risk

Application of security glazing in burglar-resistant windows according to DIN V ENV 1627

Window according to DIN V ENV 1627	Glass according to DIN EN 356	Example thicknesses as an MIG structure	Glass according to DIN 52290
RC 1	P3A*	ca. 24 - 26 mm	(A1)*
RC 2	P4A	ca. 24 – 27 mm	A3
RC 3	P5A	ca. 27 – 32 mm	-
RC 4	P6B	ca. 32 – 37 mm	B1
RC 5	P7B	ca. 38 – 45 mm	B2
RC 6	P8B	ca. 47 – 50 mm	B3