All Underwriters Laboratory (UL) rated safes (TL-15, TL-30, TL30X6 and TRTL30X6) are required to meet minimum specifications for steel thickness and security resistance in the door and body of the safe. However, most manufactuers do not share exact specifiations on door and body thickness. What we can share with you is that the manufacturer MUST meet the minimum specifications in order to pass the UL inspection.
Some of the reasoning for a manufacturer withholding this information is:
Your guarantee that any TL rated safes is secure is that these safes meet the following specifications as published by Underwriters Laboratories: (the World's largest independant and most respected testing lab)
Safes given a U.L. TL-15 rating have all passed standardized tests defined in UL Standard 687 using the same tools and usually the same group of testing engineers. Construction Requirements
Construction requirements are identical to the TL-15 above except in the door. Tests are essentially the same as the TL-15 tests except for the net-working time. Net-working time simply means "when the tool comes off the safe, the clock stops". Testers are allowed 30 minutes and a few more tools (abrasive cutting wheels and power saws) to help them gain entrance. The label signifies the testers were unable to open the door or make a 6" square opening entirely through the door or front face within 30 minutes. Keep in mind these engineers have the manufacturing blue prints and can disassemble the safe being tested before the test begins to see how it works. They know their stuff.
TL-30 x 6
The TL-30 (30-minute) test is conducted on all six (6) sides of the safe.
TRTL30 x 6
In addition to the UL tool rating, these safes have torch resistance for 30 minutes on all six (6) sides.
For additional information on UL rated safes, please view our video: https://www.youtube.com/watch?v=17VdpPiGmXs