back to overview

Aluminium entrance door
AT 310

The aluminium entrance door has an impressive design, heat protection and burglary protection. It has a flat door leaf on the outside and a profiled door leaf on the inside, with an angular frame profile. The multi-layer plate construction provides excellent thermal insulation. Multi-point locking mechanism with a swing bolt as standard and maximum stability in the door leaf ensure optimum burglary protection. A wide range of door models with different surfaces, handles and glass cut-outs offers the right door for every type of architecture.

Thermal insulation: UD up to 0,80 W/m2K
Sound protection: up to 33 dB
Security: up to RC2
Locking: multi-point locking

Product information


  • Modern design
  • Special door leaf with aluminium top layer on the outside
  • Special flexible insert in the door leaf for high climate stability
  • Three-chamber frame profile with 30 mm polyamide bars and foam insulating core
  • Thermally separated three-chamber threshold — also ideal for use in renovations
    Dimensions in mmProfile construction depth: 93 mm


    Product data sheet for download


    To download further technical data, please log in to 
    Internorm CONNECT.

    If you do not have access yet, please register first.