Product Group
Doors, Single-Leaf Doors
AT 740

System Description

The system is the alternative among door systems and combines sophisticated look and cost-efficiency with the familiar AKOTHERM quality.

Benefit from the greatest possible architectural leeway by combining various profiles and the associated wide range of styles and opening options. Despite eliminating foil-laminated insulation bars, the required U values of the Energy Saving Ordinance (EnEV) can already be reached with double glazing. This is guaranteed in all styles.

Benefit from the advantages of the economic value optimisation! The ability to use the same parts within the systems and building on the use of standardised tools and accessories reduces your costs and saves time, since there is no inserting spigots at all. Low priced accessories, quick fabrication times and the greatest possible value optimisation
ensure cost efficiency.

Another strong case for this system is the term “multifunction door”. Here the system is the basis for our fire protection system AT 740 FR. This allows you to turn the standard AT 740 door into a fire door with just a few parts.


2D cross section

Product Specifications

Installation Depths

Frame up to 75 mm, leaf up to 75 mm, glazing bars 75 mm


24 to 56 mm

Air permeability

as per EN 12207: Class 4

Driving rain resistance

as per EN 12208: up to class 8A depending on opening style

Thermal transmittance

as per EN ISO 10077-2: Uf = up to 1.9 W / (m² K)

Burglar Resistance

up to RC3

Sound protection

DIN EN ISO 10140-1: up to Rw = up to 42 dB

Barrier free passage

as per DIN 18025-2: can be implemented


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AT 740

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