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CR3 and CR4 burglary resistance certifications: a guarantee of security for your shelters and technical containers

In industrial, military, or sensitive environments, resistance to break-ins is a crucial criterion. Shelters and technical containers may house strategic equipment, servers, or communication systems that must be protected.
It is in this context that certifications CR3 et CR4, derived from the European standard EN 1627 to 1630guarantee a measured level of burglary resistance.

Application areas of the SHELTER CR3 / CR4

Why aim for CR3 or CR4 certification for your shelters?

For manufacturers and integrators, these certifications represent much more than a marketing argument:

Compliance with European requirements in terms of burglary resistance (EN 1627 to 1630).
Performance Guarantee verified by an independent laboratory.
Securing the content shelters to protect against attempts at physical intrusion.
Product Enhancement in public and industrial tenders.

certifications CR3 et CR4 attest to a proven resistance to break-in attempts, in real-world conditions.
For technical shelters, they constitute a essential reference in order to ensure the protection of the most sensitive equipment, while meeting European safety standards.

What is the CR3 or CR4 classification?

Anti-burglary tests are carried out by a certification body on our ES containers and shelters.
Each sample is subjected to a series of tests reproducing a actual attempted break-inconducted by qualified operators.
The attacks are carried out using specific tools, over defined periods of time, in order to assess the product's ability to delay or prevent access to its content.

Class CR3: resistance to medium-strength hand tools

La CR3 class corresponds to protection against an experienced intruder using common hand tools, but powerful.
The tests simulate an active attack on 5 minutes effective, representing approximately 20 minutes of real effort.

The tools used include, in particular:

flathead and Phillips screwdrivers,
crowbar,
chisels,
hammer,
hand drill
metal lever.

The structure, panels, hinges, locks and locking points are stressed in different areas to verify their mechanical strength and the consistency of the overall structure of the shelter.

CR4 class: increased resistance to attacks with power tools

La CR4 class aims for a higher level of security, intended for high-risk sites : sensitive industrial facilities, military zones, data centers or critical technical shelters.
In this case, the tests include portable power tools capable of causing more severe damage to the structure:

electric drill,
jigsaw,
hacksaw,
heavy hammer
electric chisel.

The product must withstand active attack from 10 minutes, conducted by a trained operator, without functional access being possible.

Comparative table of resistance classes

Class	Type of tools used	Active attack time	Typical applications
CR3	Hand tools (chisels, levers, screwdrivers)	5 minutes	Standard industrial sites, technical shelters, server rooms
CR4	Power tools (drill, saw, heavy hammer)	10 minutes	Critical, military, sensitive or high value-added infrastructure

Transport with or without unloading to your site as an option.

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