Opening drives

E 250 NT Compact design spindle drive with large area of application

  • Compact direct opener with large area of application
  • Drive stroke with variable adjustment and individual speeds for ventilation and smoke and heat extraction
  • Integrated Syncro module for synchronisation of up to four drives without external control unit
  • Simple mode of operation changes (Solo and Synchro, master/slave) via the Dip switch
  • IQ windowdrive - intelligent drive control
  • Tested in accordance with EN 12101-2 (NRWG)
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Compact design spindle drive with large area of application

Application Areas

  • Smoke and heat extraction and natural ventilation (24 V) for direct opening in the façade and roof area (skylights)
  • Inward and outward-opening windows with bottom-hung, top-hung and side-hung leaves
  • Louvre windows and roof windows
  • As a part of a smoke and heat extraction system (RWA) or a natural smoke and heat exhaust ventilator (NSHEV)
  • Can be used in the exhaust air and fresh air system
  • Installation on wooden, plastic or metal windows
  • Casement or frame installation

Product specifications

E 250 NT
Dimensions (W x H x D) Stroke + 284 x 40 x 47 mm
Possible stroke heights 100 mm, 150 mm, 200 mm, 230 mm, 300 mm, 500 mm, 750 mm, 1000 mm
Tensile force (max.) 750 N
Force of pressure (max.) 750 N
Operating voltage 24 V DC
Current consumption Ventilation (24 V): 0.9 A; RWA (18 V): 1.0 A, Stroke 500: Ventilation (24 V): 1.1 A; RWA (18 V): 1.3 A
Complete opening within 60 s yes, up to 500 mm stroke
SHEV tested yes, up to 500 mm stroke


Variants & Accessories


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