
Burglary safes are not a commodity purchase, they are a critical investment in the protection of your most irreplaceable valuables. When you choose an ISM Super Treasury TRTL30x6 burglary safes, you are choosing a vault engineered to withstand professional attack from every angle.
At First Security Safe, we have spent over ninety years helping businesses and individuals select exactly the right safe for their needs. Buying a best burglary safes is always a challenging task, one cannot afford to make mistakes. That is why we deal exclusively with the most trusted brands in the industry, and ISM is at the top of that list.
In this guide, we walk you through everything you need to know about ISM Super Treasury safes, their UL ratings, model specifications, why used ISM safes are an exceptional value, and how First Security Safe makes the entire process simple from selection through installation.
What Are Burglary Safes and Why the Rating Matters
Not all safes are built equal. Quick look at some common ratings:
- TL-15 means it fends off a tool attack on the door for 15 minutes.
- TL-30 does the same but for 30 minutes.
- TRTL-30 takes things up a notch with protection against both torches and tools for 30 minutes.
- TRTL-30×6 offers the highest basic standard, resisting attacks on all sides for half an hour.
Our ISM Super Treasury safe is top-notch in this TRTL30x6 class; each side of the safe is put to the test, not just the door. This is the benchmark demanded by high-end jewelers, banks, and businesses storing cash, coins, or sensitive documents.
ISM Super Treasury Built to the World’s Highest Standard
ISM (Israeli Security Markets) is one of the most revered safe manufacturers in the world. Made in Israel to exacting UL standards, ISM safes combine advanced composite body construction with precision-engineered locking mechanisms to deliver burglary protection that is genuinely difficult to defeat.
Key Features of ISM TRTL30x6 Safes
- UL-listed TRTL30x6 certification — the most rigorous burglary rating for commercial safes
- All-steel composite body — resists both torch and drilling attacks on all six sides
- Solid steel relockers — engage automatically if tampering is detected
- High-security lock options — UL-listed Group 2 combination or electronic lock configurations
- Pre-drilled anchor bolt holes — for secure floor mounting per UL placement requirements
- Configurable internal shelving — maximize usable storage for jewelry, cash, or documents
- Multiple capacities available — from 4.9 cu ft units to 16.5 cu ft floor safes over 5,100 lbs
When you buy an ISM Super Treasury, you are buying the same class of burglary protection used by professional jewelers and financial institutions, now available to businesses and qualified private buyers through First Security Safe.
ISM Super Treasury Model Specifications
First Security Safe stocks a range of ISM Super Treasury models. All models carry the TRTL30x6 safes UL rating. Review the specifications below and contact us to discuss which model is the right fit for your space and storage needs.
| Model Number | Outside Dimensions (H”xW”xD”) |
Inside Dimensions (H”xW”xD”) |
Cubic Feet Capacity |
Approximate Weight (lbs) |
# of Shelves |
|---|---|---|---|---|---|
| ST-271916 | 37.5 x 29 x 28.5 | 27 x 19 x 16 | 4.9 | 2350 | 2 |
| ST-332023 | 42.5 x 30 x 32.5 | 33 x 20 x 23 | 7.75 | 2850 | 3 |
| ST-442023 | 53.5 x 30 x 35.5 | 44 x 20 x 23 | 11.9 | 3950 | 4 |
| ST-552023 | 64.5 x 30 x 35.5 | 55 x 20 x 23 | 14.8 | 4600 | 5 |
| ST-642617 | 73.5 x 35.5 x 29.5 | 64 x 26 x 17 | 16.5 | 5100 | 6 |
Door swing projections vary by model and are an important consideration when planning your installation space. Our team can help you decide the best spot for your safety.
Affordable Used Safes: Premium Protection Without the Premium Price
One big perk of choosing First Security Safe is access to our stock of affordable used safes. A pre-owned ISM Super Treasury gives you identical burglary-rated protection as a new unit, at a significantly reduced cost.
Here is why purchasing a used ISM burglary safes from First Security Safe is a smart financial decision:
- Same UL rating, lower price. The TRTL30x6 certification does not expire. A used ISM safe certified when new remains a high-security safe.
- Inspected and verified. Every single one is checked super carefully before hitting the shelves. None of them leave our place without a full once-over; we won’t sell anything that’s been messed with.
- Expert matching. With over ninety years of experience, we match customers to the right model for their specific storage needs, jewelry, firearms, cash, or important documents.
- Full installation support. Our relationship does not end at the sale. We take care of getting your safety, setting it up properly, and keeping it in tip-top shape too.
- Genuine ISM product. We sell genuine ISM safes imported directly from Israel. You are never at risk of a counterfeit or mis-rated product.
Why Choose First Security Safe for Your Burglary Safes
There are many dealers who claim to sell high-security burglary Safes. Very few have the depth of experience, genuine manufacturer relationships, and end-to-end service capability that First Security Safe brings to every transaction.
What Sets Us Apart
- Over 90 years in the industry — we know which brands stand the test of time
- Direct import relationship with ISM — one of the most trusted ISM dealers in the country
- Competitive pricing — why pay more for your burglary protection safe?
- Professional, friendly service — discuss your exact security needs with our team
- Installation and maintenance — we handle the full lifecycle of your safe
- New and used inventory — choose the option that fits your budget without compromising security
Having a safe that does not give adequate protection is as good as not having one. That is the principle that drives every decision we make at First Security Safe.
Frequently Asked Questions
What does TRTL30x6 mean on a burglary safes?
The TRTL30x6 certification from UL means the safe passed extreme tests for resisting torch and tool attacks on all sides for at least 30 minutes. This is the best protection out there for commercial safes and is what many insurance policies need for places like jewelry stores and banks.
Are used ISM safes still safe to buy?
Yes – As long as you buy them from a reliable seller like First Security Safe. We inspect every used ISM safe in our inventory for structural integrity, lock function, and any signs of tampering before it is offered for sale. A used ISM Super Treasury that has not been attacked retains its full TRTL30x6 burglary protection capability.
How heavy are ISM Super Treasury safes? Do you help with installation?
ISM Super Treasury safes range from approximately 2,350 lbs (ST-271916) to over 5,100 lbs (ST-642617). These are serious, commercial-grade units requiring professional delivery and installation equipment. First Security Safe does the whole install, anchoring it just right for insurance and UL requirements.
What types of businesses typically use TRTL30x6 burglary safes?
TRTL30x6 rated safes are commonly used by jewelry retailers, pawn shops, currency exchanges, banks, credit unions, pharmaceutical businesses, firearms dealers, and any business required by their insurance carrier to meet a specific UL burglary rating. They are also purchased by high-net-worth individuals protecting jewelry collections, and important documents.
How do I get pricing for an ISM Super Treasury safe?
Pricing on ISM Super Treasury safes, both new and used, is available by contacting the First Security Safe team directly at firstsecuritysafe.com. We also offer great prices and can help find the perfect model within your budget too.
Conclusion: Burglary Safes You Can Trust
The ISM Super Treasury TRTL30x6 is the best when it comes to protecting against burglaries. Whether you’re a jewelry retailer trying to meet insurance standards, a bank safeguarding lots of cash, or a dedicated collector with priceless items, this ISM Super Treasury is what you need.
At First Security Safe, we aim to make getting this kind of protection simple and affordable. With our mix of new and used ISM Burglary Safes, plus over ninety years of experience and full-service installation support, you’ll get the exact burglar-proof safe you want, all at a fair price.
Contact us now, we’re here to help you find the perfect ISM Super Treasury model and give you that much-desired peace of mind, knowing it’s genuine and UL-rated for safety.



