Construction products for sealing openings for electrical services in fire-resistant components
Electrical service closures seal openings for electrical installations in fire-resistant components inside a building or structural work (e.g. in partitions, service ducts, suspended ceilings, timber frame or timber beam ceilings). They prevent the spread of fire and smoke through the sealed opening, thus ensuring that the components continue to meet the requirements corresponding to their fire-resistance class.
Electrical service closures mainly consist of construction products for sealing the opening, fasteners and, where required, accessories.
Depending on the product(s) used, construction products for sealing openings for electrical services may be installed on one or both sides of the separating component, directly opposite or offset, without additional measures being required.
Regulatory framework
DIBt grants national technical approvals (abZ)/general construction technique permits (aBG) for electrical service closures.
Required verifications:
- resistance to fire in accordance with DIN 4102-2 or DIN EN 1364-1.
Please contact DIBt before carrying out verifications for extended applications (EXAP) which are not already covered by the verifications named above.
National procedure
To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.
For a first assessment, please send us the following information:
- Description of the construction product and its intended field of use
- e.g. material, configuration, number of sizes, variants, dimensions
- e.g. use in walls, ceilings, interior construction, building services
- Description of the construction technique and its field of application
- e.g. design of walls, ceilings, elements, etc., and interaction of components
- e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
- Information regarding impact on regulatory concerns
- in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
- Explanation of need for an abZ/aBG
- Do you significantly deviate from the Technical Building Rules?
- Or do neither Technical Building Rules nor generally recognised technical rules exist?
- Contact details
- preferably email address and/or telephone number, as well as name, organisation/company, and postal address
We will then contact you to clarify the next steps.
If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided below.
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
European Technical Assessment (ETA)
To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 11 March 2025
| Subject concerned | Applicant | Decision no. |
Validity
from / to |
|---|---|---|---|
| Bauarten zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | KAISER GMBH & CO. KG Ramsloh 4 58579 Schalksmühle | Z-19.21-1788 |
Z:
02.09.2022 G: 03.09.2027 |
| Bauarten zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | KAISER GMBH & CO. KG Ramsloh 4 58579 Schalksmühle | Z-19.21-2064 |
Z:
01.12.2022 G: 01.12.2027 |
| Bauart zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | f-tronic GmbH Zum Gerlen 21-25 66131 Saarbrücken | Z-19.21-2283 |
Z:
20.07.2023 G: 17.08.2028 |
| Bauart zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | KAISER GmbH & Co. KG Ramsloh 4 58579 Schalksmühle | Z-19.21-2321 |
Z:
29.09.2023 G: 29.09.2028 |
| Bauart zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | KAISER GmbH & Co. KG Ramsloh 4 58579 Schalksmühle | Z-19.21-2413 |
Z:
21.01.2025 G: 31.01.2030 |
| Bauart zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | PLASTIC COLOR Industrielaan 10 9320 AALST BELGIEN | Z-19.21-2508 |
Z:
29.08.2025 G: 17.08.2028 |
| Bauart zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | Würth Elektrofachgroßhandel GmbH & Co. KG Ludwig-Erhard-Straße 21-39 65760 Eschborn | Z-19.21-2659 |
Z:
29.09.2023 G: 29.09.2028 |
| Bauart zum Verschließen von Elektroinstallationsöffnungen in feuerwiderstandsfähigen Bauteilen | KAISER GmbH & Co. KG Ramsloh 4 58579 Schalksmühle | Z-19.21-2693 |
Z:
14.02.2024 G: 17.08.2028 |