WMX 803

Chain actuator

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

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WMX 803

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

Smoke ventilation

    Smoke ventilation

    The product is suitable for smoke ventilation and use natural driving forces for the efficient exhaust of smoke and heat

24V Nominal voltage

    24V Nominal voltage

    The product is to be connected to a ±24V power supply



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

UL certified

    UL certified

    The product is UL certified according to UL325 for US and CSA C22.2 no.247-14 for Canada

Product Details

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

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, also possible following installation.

Chain brackets to be ordered seperately.


Technical specifications
Chain opening 50 - 250mm, in increments of 10mm
Opening speed: 7mm/s
Pressure force: Max. 150N - dependent on the chain length
- see the table on the product sheet
Tractive force 200N
Operating voltage  24 VDC (max. 10% ripple)
Current consumption 1A
Size 342 x 30 x 42mm (WxHxD)
Colour Grey (RAL 9006)

Delivery includes

Chain 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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