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

Strong actuator suitable for roof openings for 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 309-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:
Max. 1A
Opening speed:
5.8mm/s (full load)
Length of power cable:
5m grey connection cable in silicon 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 309 0300    
 1.7 kg
 WMS 309 0500    
 2.1 kg
 WMS 309 0750    
 2.5 kg
 WMS 309 1000    
 3.1 kg

Download PDF's

Window Master WMS 309-n instructions
Window Master WMS 309-n installation
Window Master WMS 309-n Data Sheet

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