Chain Actuator WMU 842

Product Details


Chain actuator 400N 2A

  • Actuator for large and heavy windows – an elegant alternative to spindle actuators.
  • For comfort ventilation.
  • For top hung, bottom hung, turning and pivot window.

The actuator is a high performance actuator especially designed for large and heavy windows – an elegant alternative to spindle actuators.

Complete opening of the window within 60sec.



– To be used together with ±24V control units or control units with MotorLink®
– Can be used together with espagnolette WMB
– 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
– Soft close function
– 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
– Built-in electronic load switch-off/end stop
– Electronic actuator with micro controller
– The actuator has an integrated reverse function to ensure a prolonged life
span of the window gaskets
– Easy mounting

Technical specifications
Chain opening 750mm
Opening speed 750mm in 60 sec.
Pressure force 400N
Tractive force 500N
Voltage nominal 24V DC
24V DC (max. 10% ripple)
Current consumption 2A
Size 80 x 54 x 765mm (HxBxL)
Colour anodized aluminium (EV1)
RAL colours at an additional price


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