Safe Burglary Ratings Explained
A safe's burglary rating is the most objective measure of how reliable it is. Independent labs attack sample safes with defined tools and record how long — or how much effort — it takes to get in. Here is what the most common ratings mean for a home.
Why independent ratings matter
Terms like "high security", "pry proof" and "heavy duty" are not regulated. A rating from an accredited body is. It tells you the safe was tested, gives you a common scale for comparison, and is often what insurers use to set the amount of cash and valuables they will cover.
UL ratings (United States)
| Rating | Standard | What it means |
|---|---|---|
| RSC | UL 1037 | Residential Security Container: resisted 5 minutes of attack with common hand tools by one technician. |
| TL-15 | UL 687 | Door and front face resisted 15 minutes of net working time with professional mechanical and electrical tools. |
| TL-30 | UL 687 | As TL-15, but 30 minutes of net working time. |
| TRTL-30 | UL 687 | Resisted 30 minutes of tool and cutting torch attack on the door and front. |
| TL-30x6 / TRTL-30x6 | UL 687 | The "x6" suffix means all six sides were tested, not just the door. |
"Net working time" counts only the time tools are actually in contact with the safe, so real-world attack times are longer than the number suggests.
EN 1143-1 grades (Europe)
EN 1143-1 is the European standard for safes, strongrooms and ATMs. It uses thirteen grades plus Grade 0 (0, I, II … XIII). Testers attack the safe with a range of tools and calculate "resistance units" based on the time and the power of the tools used. The higher the grade, the more resistance units are required for partial and full access.
- Grades 0–I — solid protection for typical home valuables.
- Grades II–III — high-value home storage, larger cash amounts and collections.
- Grades IV and above — commercial and professional use.
An important detail for homeowners: EN 1143-1 requires safes weighing less than 1,000 kg to be designed for anchoring. A rated safe that is not bolted down does not deliver its rated protection.
EN 14450 (secure storage units)
EN 14450 covers lighter "secure storage units" with two levels, S1 and S2. They sit below EN 1143-1 Grade 0 and are suitable for documents, spare keys and modest amounts of cash.
Who certifies safes
- UL Solutions — tests to UL 687, UL 1037 and UL 72 in North America.
- ECB·S — the European Certification Body of the European Security Systems Association (ESSA).
- VdS — the German certification institute used by many insurers.
- Other accredited national labs that certify to EN 1143-1 and EN 14450.
Every certified safe carries a label with the standard, grade and certificate number. Verify it in the certifier's public database.
Which rating does a home need?
| Situation | Suggested rating |
|---|---|
| Documents, passports, small cash | UL RSC or EN 14450 S2 |
| Jewelry and a cash reserve | EN 1143-1 Grade 0–I |
| High-value jewelry, bullion, collections | UL TL-15 or EN 1143-1 Grade II–III |
| Exceptional values | UL TL-30 / TRTL or EN 1143-1 Grade IV+, plus an alarm system |
Your insurer has the final word: ask which rating they require for the amount you want covered. Then read how to choose a home safe and how to install it.