The UL symbol "TRTL" indicates what?

The "TRTL" designation from Underwriters Laboratories (UL) signifies that the safe offers resistance to both torches and tools. This classification is part of a broader system that evaluates the security of safes and vaults under various attack methods. Specifically, a UL "TRTL" rating indicates that the safe is engineered to withstand a determined effort to breach it using tools for physical force, as well as the application of heat, typically through torch methods.

This rating is highly significant for users who require a secure storage solution for valuables or sensitive documents, as it assures a higher level of protection compared to safes with lower ratings. Hence, considering the potential threats of burglary and arson, the "TRTL" designation communicates a substantial value in safety and security. Understanding such classifications helps individuals in making informed decisions regarding their security needs and evaluating the effectiveness of various safes.