Page 2598 - Din prodcuts 2020

18/270 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Subdistribution boards
Fire protection housing – Electric functional unit in compact design/
fire resistance 90 minutes

Fire-resistant functional unit made of non-combustible A2 Important!
building material for enclosing electrical safety systems as The functional units are prepared for connection to on-site
prescribed by building regulations. Complete distributor ventilation systems. The ventilation system must be de-
housings, e.g. TwinLine, with at least IP54 protection are in- signed so that ventilation is guaranteed for the intended
stalled in the fire-resistant functional units. time even in case of fire.

Housing of individually equipped low-voltage switchgear as-
semblies without separate building law proof for functional
integrity (MLAR/MEltBauVO).
In this design, switchgear assemblies are suited for higher
power dissipation than fire protection housings.

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For a more clear illustration, there are no doors in the figures presented