Portec RC4 steel door • Tested • Certified
Security.
To the point.
The successfully tested and certified steel tubular frame door for sophisticated security concepts – developed and manufactured by PORTEC

RC4
Resistance class
10 min
Certified resistance
62 mm
Wing view
The idea
RC4 for architecture with distinction.
Developed on a proven RC3 basis and successfully upgraded to RC4.
PORTEC has systematically further developed a proven RC3 steel door design. Reinforcements, locking mechanisms, hinges, glazing, and panels now form a successfully tested overall system of resistance class RC4. This certified solution combines protection, escape route functionality, and architectural design – for entrances where security must not look like security.
The benefits
Large in format and slim in appearance.
3.500 mm
Bist zu dieser Elementhöhe erfolgreich in RC4 geprüft.
62 mm
Narrow profile view for a delicate architectural design.
V-Cut
Sharp-edged covers as a precise standard design detail.
2 variants
Optionally with integrated or surface-mounted hinges.
Escape route
Project-specific configuration is possible with a coordinated panic function and suitable safety glass.
Isolated
The RC4 door construction is available with integrated insulation.
Thought through to the smallest detail.

Door in sample view
Tested, certified, and documented. Safety that is proven.
The PORTEC RC4 steel door has successfully passed the required tests. This certification provides planning security for builders, architects, security consultants, and operators.
01. Proven Basis
An established RC3 steel door design has been systematically developed to achieve a higher level of security.
RC3 basic
02. RC4 Component Testing
The testing by the PIV in accordance with DIN EN 1627:2021-11 was successfully passed.
Passed
03. PIV-CERT Certification
Manufacturing and the product are certified and subject to the intended monitoring.
Certified
04. Registered with the police
The PORTEC RC4 steel door is included in the relevant police recommendation lists.
Listed
Two solutions.
One level of security.
Double-winged
Inward-opening double-leaf door system with active and inactive leaf as well as panic function E (partial panic)


Single-leaf with side panel
Outward-opening door system with fixed side panel and panic function E (partial panic)


When values are protected – and design needs to remain visible.
Politics and Administration
Museums and exhibition buildings
Banks and sensitive business sectors
Premium Corporate Headquarters
Sharp edges.
Clear materiality.
Precisely crafted profiles meet high-quality surfaces. Whether brushed stainless steel, warm brass, or powder-coated custom colors – the RC4 system remains consistent in every material.
The key data at a glance.
For the concrete planning, each design is compared with the valid scope of testing and certification.
The approved dimensions, components, and designs of the respective test and certification document are binding.
Resistance class
RC4 according to DIN EN 1627:2021-11
Tested element height
up to 3,500 mm
wing view
62 mm
Volume variants
integrated or surface-mounted
V-Cut Cover
Brass, steel, aluminum or stainless steel
Glazing
Safety and panic glazing within the approved configuration
heating concept
With integrated insulation
Versions
Single- and double-leaf
