Burglary Safes

These are sample rating, there are more. The term "resists attack by tools" is measured as the actual time that the tool is in contact with the area being attacked. Keeping this in mind, the test time is typically much longer than the number of minutes given. 

Burglary safe ratings are usually expressed by a letter, "B", "C", "E", or "TL15", "TL30", "TL60", "TLTR60", "TLTRTX60X6". The letter designations are really left over from a widely used mercantile insurance rating system, that is typically not used today. The "TL" rating are the current UL ratings, and can be broken down as follows.

The degree of protection, has as wide a range. Construction materials range from steel plate to composite materials.

Burglary safes range in size and shape, from small in floor boxes up the bank vault doors.