Functional Unit, individual

Fire-resistant and individual functional unit

Functional unit is smoke-proof

For the housing of electrical safety systems


Fire-resistant and individual functional unit for the housing of electrical safety systems required by the building ordinance. The individually designable functional unit consist of prefabricated non-flammable single components of 42 mm in thickness including the wall, ceiling, fire protection closure („System42“), bulkheads and ventilation elements.
The functional unit is smoke-proof, offers 90 minutes of fire-resistance, and can be constructed in a quick and neat design.

Proof of functional integrity must be provided in accordance with MLAR.
It must be ensured that the function of the electrotechnical installations is guaranteed in the event of fire for the necessary duration of the functional integrity.

Self-closing door(s)


  • Fire resistance 90 minutes
  • T 90-RS classification of door
  • Door are smoke-tight, tested for continuous operation


  • Functional unit with high mechanical resistance
  • Fire protection through the formation of a separate fire compartment
  • Door closes flush with body, opening angle ca. 180°, self-closing
  • Door can be unhinged, handle set in aluminium-silver
  • Locking through triple latch lock with single cylinder
  • Door with circumferential smoke and fire seals that automatically expand in the event of a fire
  • Fire-resistant supply and exhaust air system, each NW 100 mm, for connection to a fire-resistant fire-protection duct system (ventilation system) provided at the site

Ventilation flap


Material characteristic

  • Non-combustible board with surface coating, classification A2 – s1, d0
  • Standard CPL surface
  • Colour light grey, similar to RAL 7035, edges and bevels in different colour

Dimension drawing

File name
Catalouge excerpt PRIOROOM FEI .pdf

Texts for tenders PRIOROOM FEI .pdf


  • Different PRIORIT surfaces possible
  • BEK EI90S shut-off DN 100 triggered by thermal detectors, ready for installation for SYSTEM42 constructions, with a connecting sleeve on one side for DN 100
  • Cable and pipe bulkhead d = 135 mm
  • Cable bulkhead 444 x 204 x 200 mm; PRIODEK H frame
  • Cable bulkhead 444 x 204 x 200 mm; PRIODEK H frame