Il grado I implica la protezione antieffrazione collaudata contro gli attacchi degli utensili meccanici e termici secondo gli standard europei EN 1143-1 / 1143-2. Impedisce ai ladri di accedere alla cassaforte per 30 minuti utilizzando determinati strumenti come trapani, frese a disco e mazze da slitta

Classified EN 1047-1 - This level of classification indicates resistance during the exposure to heat. It prevents paper from igniting for 120 min at an outside temperature of 1090ºC and the inside temperature does not exceed 170ºC for paper. The safe is exposed to sudden heat in order to simulate an explosion and is dropped from a height of 9.15 meters to simulate a fall through a ceiling.