In the physical security and high performance locking space, RC4, RC5, and RC6 certifications are essential standards.
They allow you to evaluate a product’s level of resistance to a break-in attempt, whether it’s a door, lock, reinforced door set, façade, or window. For high-risk sites, like banks, jewellers, embassies, or public institutions, understanding the difference between these labels is crucial for selecting the right level of protection.
SERSYS, the French manufacturer of A2P- and CNPP-certified security solutions, explains all.
Explanation of break-in resistance levels
The RC (Resistance Class) classifications, defined by the EN1627 and EN1630 European standards, measure the capacity of a product for resisting physical attack.
Each level refers to different methods, tools, and break-in durations.
RC1-RC3 are intended for protection against occasional burglaries. Levels RC4-RC6 are for protection from experienced professional thieves.
RC4 – reinforced protection against manual tools
RC4-certified products resist attacks carried out with basic mechanical tools like screwdrivers, hammers, scissors, saws, and electric drills.
This level suits high-risk premises like jewellers, pharmaceutical laboratories, government sites, or high added-value sites.
The product must resist 30 minutes of sustained attack, simulating an experienced burglar.
Example: the SERSYS TECHLOCK+ RC4 , certified by the CNPP, offers a robust solution for this type of use.
RC5 – Resistance to heavy electric equipment
The RC5 certification guarantees solid resistance to stronger power tools, like angle grinders, high performance drills, and circular saws.
This level is also intended for high-risk premises like jewellers, pharmaceutical laboratories, government sites, or high added-value sites. The difference between RC4 and RC5 is that RC5 requires 40 minutes of resistance, simulating a highly experienced burglar.
RC6 – Extreme protection against professional attacks
The RC6 classification is the highest possible for civilian anti-break-in solutions.
The tests include the use of professional electric tools and coordinated actions over a prolonged period.
The RC6 door sets are intended for specific locations in strategic buildings like embassies, military institutions, headquarters, defense sites, or luxury establishments. They offer exceptional resistance, including motorised locks, opening sensors, and connected monitoring systems.
The product must resist 50 minutes of sustained attack, simulating a professional break-in.
Use cases: banks, jewellers, embassies, and high-risk buildings
The RC certification isn’t just a certification. It determines the minimum level of security required in the context. Here are some typical examples:
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Banks and financial institutions demand RC4 or RC5 door sets to secure cash handling areas, vaults, and access points for high-risk clients or ATMs.
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Jewellery and luxury retail stores require RC3 or RC4 to withstand attacks of different speeds carried out with electric tools.
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Embassies, police stations, and government buildings need RC4 bulletproof anti-burglary doors, often paired with electronic access control systems.
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Industrial sites and data centres choose RC3 and RC4 to protect technical areas and monitored zones.
These solutions ensure conformity with European security standards while allowing seamless integration with access control and alarm systems.
Examples of SERSYS solutions
With strong experience in industrial security engineering, SERSYS offers a complete range of motorised locks that meet RC4-RC6 requirements, designed and built in France.
TECHLOCK+ RC4 OR A2P RC4 CLASS DOOR SETS
Designed to resist physical and mechanical attacks, these door sets guarantee reliable protection of main entrances. They are equipped with a motorised locking system and are compatible with any type of access control.
E-LOCK RANGE – HIGH SECURITY MOTORISED LOCKS
The e-LOCK range combines robust mechanics and advanced electromechanical technology. It is ideal for technical zones, secure rooms, and high-risk sites.
BESPOKE RC5 AND RC6 SOLUTIONS
SERSYS also designs bespoke reinforced door sets with custom dimensions, bulletproofing, fire resistance, and aesthetic finishes. They are intended for government buildings and luxury establishments.
Certified by CNPP and CETIM, these solutions guarantee maximum protection and blanket conformity with European standards.
Conclusion: certified security for your projects
The choice of a door set or an RC4, RC5 or RC6 lock depends on the level of risk and type of environment to be secured.
Thanks to their renowned expertise and CNPP & CETIM certified solutions, SERSYS works alongside installers, architects, and decision-makers in the implementation of durable and scalable anti-burglary solutions.