E 250 NT * Compact design spindle drive with a wide area of application
- Continuously adjustable drive stroke and individual speeds for ventilation and smoke and heat extraction
- Synchronisation of max. four drives without external control unit
- Easy change of the mode of operation (Solo and Syncro, master/slave) via DIP switch
- IQ windowdrive - intelligent drive control
- SHEV tested according to EN 12101-2
Compact design spindle drive with a wide area of application
Application Areas
- Smoke and heat extraction system and natural ventilation (24 V) for direct opening in the façade and roof area
- Inward- and outward opening windows with bottom-hung, top-hung and side-hung leaves as well as roof windows
- Can be used in the exhaust air and air intake
- Protected outdoor area (e.g. conservatories) with variant E 250 NT AB
- Installation on wooden, PVC or metal windows
Installation situations in reference objects and videos
Spindle drive E 250 NT in an office building
The E 250 NT is a compact spindle drive with a large area of application such as smoke and heat extraction system and natural ventilation for direct opening in the façade and roof area. In addition, it can also be applied to inward opening and outward opening windows with bottom-hung, top-hung and side-hung leaves. © Jürgen Pollak / GEZE GmbH
Spindle drive E 250 NT installed in an office building
The E 250 NT is a compact spindle drive with a large area of application such as smoke and heat extraction and natural ventilation for direct opening in the façade and roof area. Can be attached to inward opening and outward opening windows with bottom-hung, top-hung and side-hung leaves. © Jürgen Pollak / GEZE GmbH
Spindle drive E 250 NT
Spindle drive E 250 NT spindle drive in compact design with large area of application, mounted in a residential building © GEZE GmbH
Product data
| E 250 NT | |
| Possible stroke heights | 100 mm, 150 mm, 200 mm, 230 mm, 300 mm, 500 mm, 750 mm, 1000 mm |
| Opening speed smoke and heat extraction: | 5.7 mm, stroke 500: 9.5 mm/s |
| Opening speed ventilation | 5 mm/s |
| Tensile force (max.) | 750 N |
| Force of pressure (max.) | 750 N |
| Holding force (max.) | 2000 N |
| Voltage at operation | ± 25 %, ± 25 % |
| Operating voltage | 24 V DC |
| Current consumption | 1.3 A |
| Power 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 |
| Power consumption | 20 W |
| Duty rating | 30 % |
| Connection cable length | 2 m |
| Special length of power supply cable | 5 m, 7.5 m |
| min. core dimension | 0.75 mm² |
| Number of cables | 4 cores |
| Temperature range | -5°C...+70°C |
| IP rating | IP65 |
| protection rating | III |
| Syncro function | Yes |
| Additional locking available | Yes |
| Type of additional locking device | Locking drive |
| Type of stroke shortening | Synchronising unit, Factory setting |
| End position cut-off extended | electronic, via internal path sensor |
| End position cut-off retracted | electronic, via path and load |
| Overload cut-off | Yes |
| Complete opening within 60 s | yes, up to 500 mm stroke |
| SHEV tested | Yes |
| SHEV additional information | yes, up to 500 mm stroke |
| Synchronisation (max.) | 4 drives |
| Bottom-hung window INWARD-opening frame installation | No |
| Bottom-hung window INWARD-opening leaf installation | Yes |
| Bottom-hung window OUTWARD-opening frame installation | Yes |
| Side-hung window INWARD-opening frame installation | Yes |
| Side-hung window INWARD-opening door leaf installation | Yes |
| Side-hung window OUTWARD-opening frame installation | Yes |
| Top-hung window INWARD-opening frame installation | Yes |
| Top-hung window INWARD-opening leaf installation | Yes |
| Top-hung window OUTWARD-opening frame installation | Yes |
| OUTWARD-opening roof window | Yes |
| Projected top-hung window OUTWARD-opening frame installation | No |
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Variants & Accessories
* Notice about the products displayed
The products mentioned above may vary in form, type, characteristics and function (design, dimensions, availability, approvals, standards etc.) depending on the country. For questions please contact your GEZE contact person or send us an E-Mail .