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High-Security Aluminium Windows for Maximum Protection
The SÄLZER Aluminium Window Series S2es is engineered to offer exceptional protection in environments with the highest security demands. Designed to resist break-ins, bullets, and explosions, it combines unparalleled performance with clean, modern aesthetics.
Certified protection against forced entry up to RC6 (RC5 for openable windows)
Bullet resistance up to FB7-NS against armour-piercing ammunition
Blast resistance tested up to EXR3 and EPR4, including bomb attack simulations
Highly thermally insulated system with excellent Uw values down to 0.8 W/m²K
Sound insulation up to RW 45 dB for acoustic comfort in secure environments
Slim profile design despite integrated high-security features
Tested as a complete unit with wall attachment and glazing for guaranteed performance
Suitable for installation in various wall types and compatible with SÄLZER façade systems
Optional timber, bronze, stainless steel or stone cladding for custom finishes
About the S2es High-Security Window System
Engineered for high-threat environments with no compromise on appearance
The S2es-w series sets a new benchmark in window security. Tested to withstand advanced break-in techniques using jigsaws and angle grinders, it offers certified protection up to the RC6 class. Its bullet-resistant capabilities extend to long firearms and armour-piercing rounds under the FB7-NS classification.
This aluminium system excels in resisting blast waves and pressure, making it a suitable choice for petrochemical, governmental, and infrastructure applications. With up to 102 mm glazing options, it handles extreme forces while maintaining visual clarity and design harmony.
Beyond security, the S2es-w delivers thermal efficiency and acoustic insulation, all in a sleek aluminium frame. With tested compatibility for diverse installation types and overcladding options, it integrates beautifully into both new builds and retrofit projects.
Technical Specifications
Certified performance across security, thermal, and structural benchmarks
Forced Entry Resistance
Certified up to RC5 for operable units and RC6 for fixed panes in accordance with DIN EN 1627–1630. Tested using powerful electrical tools including jigsaws and large grinders.
Bullet Resistance
Tested to FB7-NS as per DIN EN 1522–1523, capable of withstanding shots from long firearms and armour-piercing ammunition. Includes glazing compliance with DIN EN 1063 standards.
Blast Resistance
Rated up to EXR3 and EPR4, tested against explosions up to 500 kg from 24 m. Complies with DIN EN 13123–2 and custom sector-specific shock tube tests for petrochemical applications.
Thermal and Acoustic Performance
Delivers Uw values between 0.8–1.7 W/m²K depending on glazing configuration (double or triple). Sound insulation up to RW 45 dB for optimal acoustic protection.
Weather Resistance
Achieves air permeability Class 4 (600 Pa), watertightness up to E1050 (1050 Pa), and wind load resistance up to Class C5 (2000 Pa).
Glazing and Profile Depth
Accommodates glass thickness up to 97 mm (fixed) or 102 mm (openable). Frame depth 135 mm; sash depth 122.5 mm. Offers a slim visible profile despite its robust build.
Durability and Life Cycle
Tested for 20,000 opening cycles with sash weights up to 350 kg. Integrated SAELOX® security locking system available for added protection.
Finishes and Installation
Available anodised, powder-coated, or clad in timber, stone, bronze or stainless steel. Installable into a variety of substrates and compatible with SÄLZER façade series S1es.
What Our Customers Say
We take pride in delivering exceptional glazing solutions and outstanding customer service. Here’s what some of our happy clients have to say about working with Minimal Frame Projects.