The SDS 2 skylight system consists of a drive unit and a skylight-specific installation bracket set. This system enables opening of roof vents of up to 170º within 60 seconds.

Performance Features

  • System consisting of drive unit and skylight‑specific installation set
  • With integrated BSY+ motor
  • Service life inspected with at least 20000 opening cycles for ventilation and an additional 1000 opening cycles for smoke extraction in accordance with EN 12101‑2
  • Optimal aerodynamic values by quick opening to 172°
  • Power transmission structurally optimised, therefore minimum strain on ventilator frame and hinges
  • High protection class for drive unit
  • Quick installation and easy handling thanks to modules pre‑installed at the factory

Technical Data

Force of pressure 3000 N
Tensile force 3000 N
Nominal locking force 2200 N
Service life 20000 double strokes
OPEN running speed 7.1 mm/s
CLOSED running speed 7.1 mm/s
Wind load class 1500 N/m² ** ***
Snow load class 500 N/m² ** ***
Type of protection IP 64
Temperature range -5 °C … +75 °C
Fire resistance B300 (30 min / 300 °C)
Connection 2.5 m silicone cable

** In accordance with EN 12101‑2 (inspected with various manufacturers).
*** Values for dome size 2.25 m².


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