WML 825 For smoke ventilation, Compact 24V DC window actuator for smoke ventilation and comfort ventilation. For VELUX roof window GGL and GGU from size F06.
The window actuator is mounted behind the ventilation flap and is thus not visible when the window is closed. The chain actuator opens a distance of 540mm and can be connected directly to the KFX 100 Smoke Ventilation System.
If fitted to a KFX 100 then you will require an end of line resistor.