Anti-Burglary Steel Security Doors

SilentDoor Rw® Sentinel AB4

High level security door


Model Reference: SD-SAB4

The SilentDoor Rw® Sentinel AB4 is the ultimate security doorset, meticulously engineered with precision to deliver exceptional levels of protection, fire resistance, acoustic insulation, and energy efficiency. This innovative doorset is available in both single-leaf and double-leaf configurations, offering versatility that makes it suitable for a wide range of applications in both interior and exterior settings. Whether you are looking to enhance the security of a commercial building, a residential property, or specialised facilities, the SilentDoor Rw® Sentinel AB4 stands out as the ideal solution for environments that demand the highest levels of security and safety without compromising on aesthetics or functionality. Its comprehensive design ensures that users benefit from a robust and reliable barrier against threats, while also enjoying a quieter and more energy-efficient space.


Key Features of SilentDoor Rw® Sentinel AB4;

  • RC4 Security Rating: Designed to meet the rigorous Resistance Class 4 (RC4) standards, the SilentDoor Rw® Sentinel AB4 offers superior protection against highly skilled forced entry attempts using heavy-duty tools. This doorset is perfect for securing high-risk areas in commercial buildings, sensitive government facilities, and luxury residences.
  • A2P RC4 Certification: In addition to its RC4 rating, this doorset is A2P RC4 certified, further reinforcing its capability to withstand advanced burglary attempts and ensuring maximum security for your property.
  • Ballistic Protection (FB4): The SilentDoor Rw® Sentinel AB4 is FB4 rated, providing ballistic resistance and ensuring safety against firearms. This makes it ideal for high-security applications where both burglary and ballistic protection are required.
  • Fire Resistance (EI₂ 60): Certified for 60 minutes of fire resistance, this doorset is designed to contain the spread of fire, protecting occupants and property in the event of an emergency. It is an essential feature for buildings where fire safety compliance is critical.
  • Acoustic Performance: With acoustic insulation ratings of 44 dB (Rw) and 43 dB (Rw), this doorset effectively minimises noise transmission, creating a peaceful and secure environment. This makes it particularly suitable for noise sensitive areas, such as conference rooms, luxury apartments, or high-security offices.
  • Energy Efficiency: The SilentDoor Rw® Sentinel AB4 offers multiple thermal performance options to suit varying energy efficiency needs:
  • <2.5 W/m²K: Standard thermal insulation for general applications.
  • <1.6 W/m²K: Enhanced thermal performance for reducing heat loss.
  • <2.2 W/m²K: Balanced insulation for moderate climates.
  • <1.5 W/m²K: Superior energy efficiency, ideal for cold climates or highly energy-conscious buildings.


Suitable applications
(recommendations are as follows)


SilentDoor Rw® Sentinel AB4


  • High-Security Residential: Perfect for luxury homes, penthouses, or residences that require maximum protection, including resistance to burglary, fire, and ballistic threats.
  • Commercial: Ideal for securing sensitive areas in banks, data centers, or high-value retail stores, where both interior and exterior protection is crucial.
  • Government and Public Buildings: Suitable for embassies, government facilities, and other critical infrastructure requiring top-tier security, fire resistance, and acoustic control.


Learn more on how much 5dB makes a difference, when choosing a SilentDoor RW® HERE

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