Small 1A Chain actuator for concealed installation suited for natural ventilation

WMX 803

  • Chain actuator for concealed installation
  • For comfort ventilation.
  • For all window types except roof lights.

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About WMX 803

Main features

  • Natural ventilation

    Natural ventilation

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

±24V Nominal voltage

    ±24V Nominal voltage

    The product is to be connected to a ±24V control panel



    The product communicates with control panels with MotorLink® – an intelligent patented digital communication from WindowMaster

Product Details

Programmable 24VDC chain actuator for concealed installation in window profiles for comfort ventilation.
Not appropriate with roof windows.

Chain brackets to be ordered seperately.


Installation TypeIntegrated
Surface mounted
Window typesFacade windows
Chain stroke options50 - 250mm in increments of 10mm
Pressure Force150N
Traction force200N
Locking force3000N
Operating speedProgrammable from 3mm/s to 10mm/s
Sound pressure level≤33 dBA (operational speed: 3 mm/s)dBA
≤43 dBA (operational speed: 9,5 mm/s)dBA
Power Supply24 V DC
Current consumption1A
Nominal Voltage24V DC (max. 10% ripple)V DC
IP ratingConcealed: IP 32
Surface mounted: IP 20
Life spanTested with 10,000 opening and closing movements
Size mm30 x 342 x 42 (H x W x D)mm
Colour optionsGrey (RAL 9006)
MaterialLacquered zinc house with 10mm zinc cromate passivated steel chain
To be ordered separatelyBrackets and standard extension cables type WLL

Delivery includes

Actuator with 100mm connection cable with fast-in/fast-on connector for WLL cable

Intelligent control of windows: MotorLink®

MotorLink® is a communication technology that enables 2-way control and feedback between window actuators and the Building Management System via the MotorController. All WindowMaster control systems are MotorLink® capable with many of our actuators. Click below to learn more and see related products.

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