The difference between a 30, 60, and 90-minute for fireproof safe is the amount of time the safe can withstand exposure to fire while protecting its contents.
A 30-minute, 60-minute and 90-minute fire-resistant safe is designed to protect its contents from damage for at least 30 minutes, 60 minutes and 90 minutes in the event of a fire. This means that the safe has been tested to withstand exposure to fire with an external temperature of up to 1550°F (843°C), 1700°F (927°C) and 1850°F (1010°C) for at least 30-minute, 60-minutes and 90-minutes without the internal temperature rising above a certain level that would damage the contents of the safe.
The higher the fire rating the higher the safety level of that safe. So, if the safe is primarily used for coins and jewellery, a high fire rating is not as important as it is used to store electronic data storage media or film.
- Coins and jewellery – low
- Notes, papers and documents – medium
- Electronic records, backups and film – high