When we look at the table of resistance classes, the first noticeable differences are the resistance time and the intruder profile. For RC2, an opportunistic intruder will need at least 3 minutes to attempt a break-in, whereas for RC3, a more experienced intruder will be at work for at least 5 minutes. In fact, the total testing time for RC3 elements in the laboratory is significantly higher!
The most important difference lies in the tools used: For RC2, the primary tool is a 365 mm screwdriver. For RC3, a 710 mm crowbar (pry bar) is added, allowing the intruder to apply enormous leverage. With such tools, an RC2 element can be forced open relatively quickly. In contrast, an RC3 element is expected to withstand an attack with a screwdriver indefinitely.
The level of burglary resistance increases exponentially from one RC class to the next. We achieve this through the use of different materials. For RC3, hardwood such as oak is required, whereas for RC2, softwoods like pine, larch, or fir are generally sufficient. Additionally, RC3 elements have significantly more locking points in the perimeter hardware, much stronger anchoring to the masonry, and additional metal reinforcements in the frame.
The glazing also differs: At RvE, we typically use P4A impact-resistant glazing for RC2 elements. Starting from RC3, we recommend break-in-resistant security glass of class P6B or higher, according to DIN EN 356. Visually, you won’t be able to tell the difference between RC2 and RC3 elements from our manufactory. Even with the thicker glass, we can offer very slim profiles and extremely narrow sightlines.
We strongly advise against using RC2N elements in accessible areas. The “N” indicates that no security glazing is installed, creating a weak point that an intruder can easily exploit.