Protection for Critical Infrastructures

Physical protection of critical infrastructures requires solutions that surpass the most common attack methods. If you manage the security of a bank branch, data center, or embassy, you know that a conventional shutter or a standard door is not enough against real threats. RC4 shutters and doors certified to EN1522 offer a certified barrier against intrusion attempts and armed attacks, covering the requirements of international regulations and risk audits.

What does the RC4 certification mean for shutters and why is it relevant?

The RC4 classification, according to the EN 1627 standard, guarantees that the shutter withstands attacks with electric tools such as saws, drills, and chisels for at least 10 minutes. This level of protection is sufficient to deter most premeditated burglary attempts in luxury establishments, museums, and restricted access areas. Installing a RC4 security shutter in a server room, for example, allows compliance with the physical security audit requirements mandated by regulations like ISO 27001.

EN1522 Reinforced Doors: ballistic resistance and access control

Reinforced doors certified under the EN1522 standard provide protection against firearms. Level FB4, for example, withstands impacts from .44 Magnum handguns, while FB6 and FB7 can handle shots from assault rifles like the AK-47. In embassies and banks, choosing an FB6 door can make a difference in the event of an armed attack. The CBX-60 armored door combines ballistic resistance with electronic access control, allowing entry management only for authorized personnel.

Technical Comparison: RC4 vs. other protection levels

Choosing between RC4, RC5, or RC6 depends on the type of threat and the response time of security forces. An RC4 shutter resists electric tools for 10 minutes, while RC5 and RC6 increase resistance to 15 and 20 minutes respectively, even with more powerful tools. In data centers located in urban areas, RC4 is usually sufficient, but in isolated facilities or those with high strategic value, it is advisable to consider higher levels. You can check the details of the breach resistance regulation to define the appropriate level.

Practical applications in critical infrastructures

In bank branches, RC4 shutters are installed at secondary access points and windows, preventing forced entries outside business hours. For museums and galleries, the combination of security shutters and reinforced doors protects artworks at night and controls visitor flow during opening hours. In data centers, certified physical protection is a requirement for audits and insurance, as it reduces the risk of sabotage and theft of sensitive information.

  • In embassies, FB6 doors and RC4 shutters enhance perimeter security against armed threats.
  • In bunkers and panic rooms, the combination of RC6 and FB7 ensures resistance against prolonged attacks and high-caliber weapons.

Complementary regulations: explosions, fire, and wind

Physical security does not end with resistance to breaches or ballistic attacks. In government buildings and data centers, you must consider explosion protection and fire resistance. CBX reinforced doors can incorporate additional certifications, ensuring that the physical barrier remains intact against fires or detonations. In areas exposed to hurricanes, wind resistance is also a key factor in selecting shutters and doors.

Installation and maintenance considerations

Installing RC4 shutters and reinforced doors requires a prior analysis of the structure and the flow of people. It is essential that the frame and anchors are compatible with the chosen level of protection. Regular maintenance ensures that locking systems and materials do not lose effectiveness over time. For installations with heavy traffic, such as banks or museums, annual reviews and functionality tests of emergency opening systems are recommended.

Need advice on choosing the right level of protection? Contact our technical team or call us at +34 928 18 35 96.