Why are there 350F and 125F class for fireproof filing cabinets and other fireproof products?
The 350F and 125 refer to the temperature that the interior of the product is allowed to reach during a fire. Not all products break down at the same temperature during a fire. Paper products will burn when the interior of the safe or filing cabinet reaches 400F. Media on the other hand is much more susceptible to heat. Most forms of media are useless after they surpass the 125F point. So make sure that you check the UL label on the product to make sure that it is properly rated for the types of contents that you are going to store.
