WMS 409-n Actuator

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 separately.

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  • The product is to be connected to a ±24V power supply
  • 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
  • The product is suitable for comfort ventilation to ensure that the building’s users enjoy a comfortable indoor climate
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Technical specification
Spindle stroke see product sheet under down loads
Opening speed 12,5 mm/s (full load)
Force max. 900N
Nominal voltage 24 VDC, max.15% ripple
Current consumption 1.8A
Size Ø36mm
Colour anodized aluminium (EV1)