BÖLDT - By Window Techs
Automatic Fire Curtains, deployed

Tested to EN 1634-1

Automatic Fire Curtains

Electric-motor-held, gravity-drop fire curtains remain concealed inside a compact ceiling head box until deployed by fire alarm or power loss. Descends under gravity at a controlled rate to form a fire-resistant barrier tested and certified for up to 240 minutes. Gravity fail-safe means deployment occurs on total power failure - no battery backup or manual release required.

Fire CurtainEN 1634-1NBCS 2026 Type 1/2
Orientation
Vertical
Integrity
Up to 240 min
Radiation
Up to 120 min
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How it works

Closing the opening

Held open by an electric motor and released by fire alarm or power loss, the curtain descends under gravity at a controlled rate to form a fire-resistant barrier - tested for integrity up to 240 minutes.

FIG. FC - AUTOMATIC FIRE CURTAIN / ELEVATIONGRAVITY FAIL-SAFECEILING LINECONCEALED HEAD BOXDEPLOY ↓Fire curtain fabricIntegrity barrierGravity fail-safeAlarm / power lossBOTTOM BAR / WEIGHTOpening sealed - integrity up to 240 minSCHEMATIC - NOT TO SCALE
FabricGlass fabric + stainless wire
CoatingAluminium pigmented PU
Head boxGalvanized / powder-coated steel
DeploymentAlarm, BMS or power loss
Closure mechanismGravity fail-safe
Integrity (E)Up to 240 minutes
Radiation (EW)Up to 120 minutes
Test standardEN 1634-1
Extended applicationEN 15269-11
CertificationEN tested; marking and DoP on request
Max dropUp to unlimited (model dependent)
Power dependencyNone for closure

• Models

Fire curtain models

ModelMax WidthMax DropTest StandardIntegrity (E)Radiation (EW)
WFC-016 m25 mEN 1634-1240 min60 min
WFC-02Unlimited25 mEN 1634-1240 min60 min
WFC-03UnlimitedUnlimitedEN 1634-1240 min60 min

Head Box & Guide Rail

Material: galvanized steel. Finish: G.I. or powder coated.

Fabric

Glass fabric with reinforced stainless steel wire. Finish: aluminium pigmented PU coating.

Need a specification for your project?

Our technical team can help with curtain sizing, drop configuration and BMS integration.

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