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LDN Smoke Damper

Power open / power closeoperation
EN 12101-8: E120 (ve, ho i ↔ o) Scertified
up to 1.2m²GFA
10,000 cyclesdurability

Why Choose the Ventec SCD LDN

Smoke Shaft Specialist

Purpose-designed for multi-storey smoke shaft systems in residential and commercial buildings. Compatible with drywall and masonry/concrete shaft constructions.

Fire Performance

Certified to BS EN 12101-8 and classified to BS EN 13501-4. Tested to BS EN 1366-10 achieving E120 fire integrity. S 1000 smoke leakage rated.

System Compatibility

Compatible with 400 Series, O Range, 1000-G and 2000-CP control systems, providing flexibility across a wide range of smoke control system architectures.

Power Open / Power Close

24Vdc actuator with power open and power close functionality drives damper blades from the default closed position to fully open in under 60 seconds.

10,000 Cycle Durability

Engineered and cyclic tested for a minimum of 10,000 operations, ensuring long-term reliable performance in demanding multi-storey smoke shaft applications.

Discreet Aesthetic

All damper internal surfaces are matt black for concealed installation behind the supplied architectural grille. Grille features 40° angled blades at 19mm pitch.

Auxiliary Contacts

Two SPDT auxiliary switches for position monitoring, enabling integration with building management and fire alarm systems.

Key Features

E120 Fire Rated

Certified to BS EN 12101-8 with E120 fire integrity, providing two hours of tested protection in multi-storey smoke shaft systems.

10,000 Cycle Durability

Engineered and cyclic tested for a minimum of 10,000 operations, ensuring long-term reliability in demanding daily and emergency use.

Power Open/Close

24Vdc actuator drives damper blades from default closed to fully open in under 60 seconds with powered control in both directions.

Discreet Grille

Matt black internals concealed behind an architectural grille in RAL 9010 white, with custom RAL colours available on request.

Choose Your Configuration

Standard

Lobby Damper

Sleeved damper with peripheral flange and architectural grille. Available in 50mm increments from 400mm to 1200mm width and 600mm to 1425mm height.

Custom

Bespoke Options

RAL colour grille options available. Sizes typically available in 50mm increments within the standard dimensional range. Consult GFA table for specific free area requirements.

Certifications & Compliance

BS EN 12101-8

Certified to BS EN 12101-8:2011 for smoke control dampers. Classified to BS EN 13501-4 and tested to BS EN 1366-10.

E120 Fire Rating

Achieving E (120 Vew i <--> o) S 1000 C10,000 AA Multi classification for fire integrity, smoke leakage, durability and multi-compartment use.

Regular Servicing Required

Smoke ventilation systems require regular testing and record-keeping by authorised, competent persons. Servicing by accredited and certified smoke vent engineers only.

Need Some Help?

We have a team of ventilation specialists on hand to help guide you towards selecting and customising your system.

Call us: 01202 725 485

Email us: info@vent-trade.co.uk

Technical Specifications

Performance

  • Certification: BS EN 12101-8:2011
  • Classification: BS EN 13501-4
  • Test Standard: BS EN 1366-10
  • Fire Rating: E120
  • Smoke Leakage: S 1000
  • Durability: C10,000 (min. 10,000 cycles)
  • Compartment Use: AA Multi
  • Opening Time: < 60 seconds

Electrical

  • Nominal Voltage: 24Vdc
  • Voltage Frequency: 50/60Hz
  • Power In Operation: 12 watts
  • Power At Rest: 0.5 watts
  • Power For Wire Sizing: 18VA (Imax 8.2A @ 5ms)
  • Auxiliary Switch: 2 x SPDT
  • Supply Cable: 1m, 3 x 0.75mm², halogen-free
  • Aux Switch Cable: 1m, 6 x 0.75mm², halogen-free
  • Protection Class: III (SELV)
  • Degree of Protection: IP54
  • EMC: CE per 2014/30/EU
  • Low Voltage: CE per 2014/35/EU

Physical

  • Min Width: 400mm
  • Max Width: 1200mm
  • Min Height: 600mm
  • Max Height: 1425mm
  • Sleeve Depth: 175mm
  • Size Increments: 50mm
  • Damper Finish: Matt black
  • Grille: RAL 9010 white (standard)
  • Grille Blade Angle: 40°
  • Grille Blade Pitch: 19mm
  • Ambient Temperature: -30°C to 50°C
  • Ambient Humidity: Max. 95% r.h. non-condensing