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Advice for buying a safe

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All information about the recommended insurance sums of our safes.

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Successfully working for your safety for over 35 years.


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Consultation for Purchasing a Safe

Step 1: What do you want to insure?

Private Utilization

Private Safe Utilization

Areas of Utilization:
For example: jewellery, cash, coins, watches, documents, riffles, bonds, certificates, account statements, passbook, cheques, stamp collections, family documents, personal items, photography equipment

Commercial Utilization

Commercial Utilization

Areas of Utilization:
For Example: Business documents, patient data, balances, prescription medication, data carriers, personnel data, acoounts, petty cash, contracts, research documents, IT documents, change, films, reports, balance sheets, classified documents, plans, video tapes

Step 2: What size should your safe have?

Tip: Safe Size

Consider your space requirements. It is hereby important to include items which you will add on in the future.

The purchase of a safe is forever, which is why it certainly is advisable that you purchase a safe that is bigger than what you currently need.

Hence, you will have plenty of space in the future and you will avoid a pricy repurchase. The price-difference between smaller and larger models is often insignificant!

Step 3: Fire Safety

Decent Fire Safety


Decent fire safety in accordance with DIN4102

30 minutes fire safety

30 min

30 minutes as per EN15669 (LFS30P)
30 minutes according to UL 72

60 minutes fire safety

60 min

60 minutes according to EN1047-1 (S60P)
60 minutes according to EN15669 (LFS60P)
60 minutes as per NT Fire 017-60P

120 minutes fire safety

120 min

120 minutes as per EN1047-1 (S120P)
120 minutes according to UL 72

Please make sure weather or not you will need fire safety.
Most safes which come at insurance class already have a decent fire safety as a standard.
If you want to be sure that your valuables are protected from fire, however, you will need a safe with a certified fire safety

LFS30P - 30 minutes at 840C
S60P/S120P - 60 or 120 minutes at 1090C (paper)
S60DIS/S120DIS - 60 or 120 minutes at 1090C (data cariers)

Step 4: Protection From Burglaries

Safe without any security levels are usually double-walled safes with a 3-5mm steel sheet.

If you are in need of protection from theft or the insurance asks for a certain security class, a number of different security classes with different certifications are available.

Security level in accordance with VDMA and EN14450 (Decent Protection)

Security Level A *


Protection from lighter, mechanical housebreaking tools, no protection from intrusion.

Security Level B *


Protection from lighter, mechanical house breaking tools and from smaller fire.

Security Class S1

S1 EN14450

Protection from mechanical housebreaking tools.

Security Class S2

S2 EN14450

Protection from mechanical housebreaking tools and smaller fires.

* The standard sheet VDMA-24992 was withdrawn without replacement.

Secuirty class according to EN1143-1 (High Protection)

EN 0/N

EN0 EN1143-1

Insurance Amounts*:
Industry: 10.000,00
Private Area: 40.000,00

Resistance Unit (RU)**:
Partial breakthrough: 30 RU
Total breakthrough: 30 RU

EN 1

EN1 EN1143-1

Insurance Amounts*:
Industry: 20.000,00
Private Area: 65.000,00

Resistance Unit (RU)**:
Partial breakthrough: 30 RU
Total breakthrough: 50 RU

EN 2

EN2 EN1143-1

Insurance Amounts*:
Industry: 50.000,00
Private Area: 100.000,00

Resistance Unit (RU)**:
Partial breakthrough: 50 RU
Total breakthrough: 80 RU

EN 3

EN3 EN1143-1

Insurance Amounts*:
Industry: 100.000,00
Private Area: 200.000,00

Resistance Unit (RU)**:
Partial breakthrough: 80 RU
Total breakthrough: 120 RU

EN 4

EN4 EN1143-1

Insurance Amounts*:
Industry: 150.000,00
Private Area: 400.000,00

Resistance Unit (RU)**:
Partial breakthrough: 120 RU
Total breakthrough: 180 RU

EN 5

EN5 EN1143-1

Insurance Amounts*:
Industry: 250.000,00
Private Area: by arrangement

Resistance Unit (RU)**:
Partial breakthrough: 180 RU
Total breakthrough: 270 RU

Value protection safes which were tested and certified in accordance with the EN1143-1 have a defined and type-tested burglary protection against attacks with mechanical and thermal housebreaking tools.

The quality of the storage unit should matter during purchase; Especially when it comes to the protection of valuables, cash and important documents. Nothing is worse than when you have saved money at the wrong place and your material and personal values are hence not sufficiently protected from burglary.

Please note: The insurance protection can be doubled by using a burglary alarm system (BAS).

Tipp: Versicherungssummen

* The values mentioned above are considered guideline values. Please clarify the insurance amounts with your insurance consultant.
** The type testing aligns with the resistance units RU. The more RU /resistance units, the higher the Euro-norm EN-resistance level.

Our Recommendation:

As burglars have become more and more professional and better equipped over the last few years, we recommend that you choose the best possible storage for your valuables - i.e. safes which are certified by VdS and ECB-S. In comparison to safes without any certificate, these products offer a significantly better protection from forceful opening because they were tested in accordance with the strictest examination criteria. Usually, these safes are not much more expensive than those without a certification, and if the price is higher it is most certainly worth it.

Tested and certified value protection safes with an ideal price-performance value can be found, for example. in our product series PRIMAT, starting from security level a EN1.

Further Information Concerning Burglary- and Fire-Protection

The safety-assessment are subject to various testing instances, which distribute certificates with nation-/Europe-wide validity.

Safes which were produces according the VdS-requirements and the Euro-norms provide you with a guaranteed protection from intrusion and theft (according to their security class). Products that align with these norms are typed and have a consistent quality, which is subjected to constant testing. The Mller-safes fulfil these conditions exceptionally well.

Extensive tests are made by the examination institution VdS (Verband der Schadensversicherer Kln = Association of the Indemnity Insurance Cologne) before a safe-series obtains the market approval. The products can be certified accordingly and obtain market approval only after all criteria have been fulfilled .

These cabinets are identifiable due to their VdS- or ECB-S label on the door's inside (see for reference: following exemplary plates).

Musterplakette Zertifikat ECB-SMusterplakette Zertifikat VdS

If you are planning on insuring your safe's contents (real value), the professional mounting of your safe (with a dead weight under 1,000 kg) is a minimum requirement of the VdS. Every safe (according to the VdS / ECB-S) is therefore equipped with a floor mounting if their dead weight is lower than 1,000 kg. The mounting must be professionally made by using heavy-duty dowels (anchors).

Information Concerning Data Security and Fire-Safety Certification

Magnetic data carriers are considered sensitive items as they are in need of a physical protection.

Long-term studies show that disks are already endangered by temperatures which are harmless to magnetic tapes / magnetic disks. Temperatures of over 50 Celsius and a relative air humidity of 85% suffice to destroy essential disks of a company which then might even threaten their existence. To ensure that your disks are protected, you should aim for the certification mark of quality classes S 60 DIS and S 120 DIS.

Musterplakette S 60 DIS

TU Braunschweig's Endurance Test

The legislator and the insurance companies demand high standards for the protection of documents and data. In order to guarantee the physical security of your most important data in extreme situations, safes are tested by accredited testing laboratories and are afterwards divided into quality classes. These quality classes specify the fire resistance of a data safe in the case of a permanent flame exposure.

The endurance test at the TU Braunschweig showed excellent results for the Mller disk safe. The tested cabinet withstood a flame exposure of 60 or 120 minutes at an average temperature of approx. 950 degrees Celsius without any damage. At the highest point of the flame exposure reached a temperature of 1090 degrees Celsius. In addition, the tested cabinet passed a fire impact test, as well as a crash test from a height of 9.15 m without damage to the contents - i.e. the disks provided by the University of Braunschweig. The certification guidelines and requirements posed by the ECBS CO2 were therefore fulfilled. This allows for the use of a certification mark in accordance with EN 1047-1 in combination with an audit certificate of quality class S 60 DIS and S 120 DIS.

Excerpt from the "Certification for Fire Protection Products - ECBS C02 Juli 2007

In the course of the surveillance examinations the inspector determines whether the certificate holder produces on the basis of a certified quality management system according to ISO 9001:2000 (EN ISO 9001:2000). The monitoring should take place at least twice a year. The number of inspections can be reduced to one external quality inspection per year if no defects are found in the first year after production has begun.

Utilization of the Certification Mark

DProducts complying with the testing standards must be identified by certification marks. Example of a certification mark for a data storage cabinet S 60 DIS according to EN 1047-1 can be found here. The certification marks are numbered consecutively and can be obtained from the ESSA. Their allocation to products of a certificate holder is documented.

Quality Class Quality Feature for Fire Safety

Document and data cabinets in accordance with EN 1047-1 must be subjected to a fire resistance test to determine the temperature increase in the interior of the safe. A fire impact test, as well as a drop test of data cabinets simulates the falling of structural elements (e.g. the ceiling) onto the product in case of fires.

Quality Class of Safes for Data- and System-Protection:

Quality Class ECB-S Certification Pressure threshold
max. temperature max. relative humidity
S 60 P EN 1047-1 170C -
S 120 P EN 1047-1 170C -
S 60 D EN 1047-1 70C 85%
S 120 P EN 1047-1 70C 85%
S 60 DIS EN 1047-1 50C 85%
S 120 DIS EN 1047-1 50C 85%

S Data Safety Cabinet in accordance with EN 1047-1
60 60 minutes flame resistance
120 120 minutes flame resistance
P suitable for heat-sensitive paper documents with a threshold of up to 170C
D suitable for heat- and moisture-sensitive data carriers with a threshold of up to 70C and 85% air humidity
DIS suitable for heat- and moisture-sensitive data carriers (disks) with a threshold of up to 50C and 85% air humidity.

Step 5: Which Lock?

Lock - Key-Lock


  • You will never have to remember an opening code and everyone who has a key can gain access to the safe.
  • It can happen that burglars find the keys which can have massive damages as a result.
  • The keys are usually rather larger and are therefore not suitable for being carried along
  • The costs for losing a key are very high
Lock - Electronic Lock

Electronic Lock

  • Electronic Locks are opened by using a numeric code. Therefore, they do not come with keys, which would have to be hidden, which could be lost, or which could fall into the wrong hands
  • If necessary, the combination code can be quickly changed without much effort
  • The code can be transmitted via mobile phone - should you be absent in cases of an emergency
  • The batteries should be exchanged once a year; However, in cases of empty batteries the safe can still be opened thanks to an emergency power supply
Lock - Mechanic Combination Lock

Mechanic Combination Lock

  • Just as with the electronic locks, a key, which can be lost or stolen, is not needed in order to open the safe
  • Very robust and reliable, it can also be used in permanently damp places and in places below the frost line
  • Cumbersome usage, relies upon a stead hand and a keen eye, as well as concentration whilst entering the code
  • The alteration of the numeric combination or the code is laborious; an conversion-key is necessary
Tip: Electronic Lock with an Emergency Opening
Electronics Lock with an Emergency Opening
Our Recommendation:

For the optimal user-comfort, a variety of options and the best security we recommend the first-rate electronic locks, which also come with a mechanic emergency opening mechanism. These come in handy when the electronic lock fails to work and the safe can hence not be opened any more.

Dut to our year-long experience we can only highly recommend these first-rate locks to every customer:

Price Tip: Electronic Lock TULOX
The cost-effective option with a mechanic emergency opening system.
Highest quality and secure: Electronic Lock CB30
The Swiss quality lock with a mechanic emergency opening system
Best quality and fully redundant: Electronic Lock PAXOS
The best lock for safes in the market.

Step 6: Delivery and Mounting?

Tip: Transportation Questionnaire

Especially when it comes to large and heavy items such as safes the question of delivery and a professional mounting arises rather often.

Therefore, we offer a free-of-charge delivery to your doorstep as well as a cost-effective and professional transportation service, including the installation.

It is generally applicable that a safe under 1,000 kg dead weight must always be mounted. This is not only a requirement of most insurance companies, but it also ensures optimal security, as the safes can not be easily removed.

Mounting of the Safe:

Contribution by Professional Personnel. We advice you to a contribution and mounting by a trained, professional personnel, as unmounted safes can easily be removed by burglars. Furthermore, many insurances require a professional mounting. We would offer to do this job professionally and for an affordable price. In regard to the pricing, please refer to the menu-button die Delivery and Assembly Service