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  • Smoke ventilation.
  • Environmental ventilation.


The SECO Ni 24 40 is a certified and compliant chain actuator designed to provide precise and reliable operation.

Features and benefits:

  • Tested to all annexes of EN 12101–2:2003.
  • ‘Frequency of operation’ data logging records every actuator movement.
  • Compact design with variable options for stroke length.
  • Standard finish is powder coated grey (RAL 9006), can be customized to suit requirements.
  • Standard flex length is 2 m but this can be modified to suit installation requirements.
  • Extensive range of brackets to suit a variety of window systems.
  • Quiet operation with configurable speed control.
  • Soft close feature and electronic switching.
  • Programmable seal relief, up to 20 mm.
  • Optional synchronization, consult manufacturer for details.
  • 15,000 product cycles.
  • 900 mm version is not suitable for Top Hung applications.
  • CE marked.


  • Smoke ventilation.
  • Environmental ventilation.

Orientation (on the window):

  • Bottom hung.
  • Top hung.
  • Side hung.
  • Centre pivot.

General information
Uniclass 2015
Pr_75_50_02_13 Chain actuatorsPrimary

L10/10 Wood windows

L10/15 Wood windows

L10/20 Steel windows

L10/210 Wood windows

L10/25 Aluminium windows

L10/250 Wood windows

L10/260 Wood windows

L10/30 PVC-U windows

L10/31 PVC-U windows

L10/310 Steel windows

L10/315 Steel windows

L10/33 Proprietary windows

L10/330 Aluminium windows

L10/335 Aluminium windows

L10/350 PVC-U windows

L10/360 PVC-U windows

L10/390 Proprietary windows

L10/400 Composite windows

L10/410 Composite windows

Specification data - Chain actuators
Product Reference

SECO Ni 24 40



Stroke: 0–600 mm, Ingress protection: IP42. Size: 635 mm.


Stroke: 0–600 mm, Ingress protection: IP20. Size: 635 mm.


Stroke: 601–900 mm, Ingress protection: IP42. Size: 785 mm.


Stroke: 601–900 mm, Ingress protection: IP20. Size: 785 mm.

Colour/ Finish

Grey RAL 9006



Consult manufacturer and insert requirements.

Bracket -

Face fix bracket

Open inward

Sill fixing


35 mm

40 mm

50 mm


0 mm

5 mm

8 mm

10 mm

15 mm

20 mm

Not applicable with 35 and 40 mm high brackets.



4 core (volt free contact) flex

Flex length

Consult manufacturer and insert requirements.


Standard product features


Chain operated.

Operating speed:

15 mm/ second. Minimum 8 mm/ second (configurable).


  • Thrust and closing force: 400 N.
  • Clamping force: 4000 N.

Electrical data:

- Voltage:

24 V using 2 core (0.75 mm silicone) flex. Actuators require control from a compatible low voltage unit such as an OS2 SHEVTEC controller or NVLogiQ® PSU and permanent power should not be applied.

- Current:

  • 0-600 mm stroke: 1.0 A.
  • 601-900 mm stroke: 1.2 A.


Consult technical literature for associated control information.

Duty cycle:

22% (2 minutes on, 7 minutes off).

Ambient operating temperature:

-5°C to +60°C.

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