Grade 3 safes are certified according to the European standard EN 1143-1 and represent our most popular grade — chosen by private individuals, businesses and public institutions alike. Not without reason: from Grade 3 onwards we are talking about a genuine safe, the first grade offering resistance against the full spectrum of attack methods, including thermal tools. Grade 3 safes provide resistance for a medium-high risk profile, against a professional intruder using mechanical and electrical tools — suitable for those storing significant valuables and anticipating a targeted, prepared burglary attempt.
During certification, specialised test laboratories attempt to force the safe open using a variety of attack methods — mechanical tools (such as hand tools and crowbars), power tools (such as drills and angle grinders) and thermal tools (cutting torches, thermal lance) — under strictly controlled conditions by independent bodies such as ECB·S.
Under EN 1143-1, burglary resistance is expressed in Resistance Units (RU). For a Grade 3 safe, the resistance level is 80 RU for partial access and 120 RU for full access. Partial access refers to the creation of a limited opening through which a hand can be inserted, while full access implies complete access to the contents, for example by opening the door or creating a larger opening.