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Window Master WMS 409-n

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Brand: Window Master | Manufacturer Part numbers: WMS 409-n

This product is suitable for:

  • Top-hung windows
  • Bottom-hung windows
  • Skylights, roof windows
  • Pivot frames
  • Cupolas
Specifications at a glance:

Traction force: 900 N

Thrust force: 900 N

Strokes: 300 mm / 500 mm / 750 mm / 1000 mm

Protection Class: IP 54

Voltage supply: 24v DC

Colours Available:

Available in Silver Anodised


Product Information


Spindle actuator 900N MotorLink®

Spindle actuator 900N with MotorLink®
For smoke and comfort ventilation

24V Nominal voltage
The product is to be connected to a ±24V power supply

Smoke ventilation according to EN 12101-2
The product is suitable for smoke ventilation according to EN 12101-2 and uses natural driving forces for the efficient exhaust of smoke and heat

The product communicates with power supplies with MotorLink® – an intelligent patented digital communication from WindowMaster

Natural ventilation
The product is suitable for comfort ventilation to ensure that the building’s users enjoy a comfortable indoor climate

Strong actuator suitable for roof openings for smoke and comfort ventilation
To be used together with ±24V control units or control units with MotorLink®
Synchronization of up to 4 window actuators – no need for an external synchronization module
Genuine position feedback and 3 speeds when using control unit with MotorLink®

The electronics in this actuator can be programmed to suit specific requirements – i.e. pressure- and traction force, stroke, speed/sound level – with the WAT 100 programming box, this is also possible following installation

The actuator has an integrated reverse function to ensure a prolonged life span of the window gaskets
Brackets and fastenings to be ordered seperately.

Additional information



Window Master
WindowMaster brand products

Product Applications

This product is suitable for:

  • Top-hung windows
  • Bottom-hung windows
  • Pivoting frame windows
  • Roof windows
  • Cupolas
Product applications top & bottom hung , pivot windows & cupolas

Technical Details

WMS 409-n
Nominal voltage:
24V DC max. 10% ripple
Traction force:
900 N
Thrust force:
900 N  
300 mm / 500 mm /750 mm /1000 mm
Locking Force:
Current Consumption:
Opening speed:
12.5mm/s (full load)
Length of power cable:
5m grey connection cable in silicone 3-core 0.75mm2 ø7.0mm
Operating temperature:
-5°C – +74°C max. 90% relative humidity (not condensing) 
Protection Class:
IP54 according to EN 50529
WMS 409-1 0300  
 1.8 kg
WMS 409-1 0500  
 2.3 kg
WMS 409-1 0750
 2.7 kg
WMS 409-1 1000
 3.1 kg

Download PDF's

Window Master WMS 409-n Data Sheet
Window Master WMS 409-n installation

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