WMX 823

Chain actuator

  • Chain actuator for concealed installation.
  • For smoke and comfort ventilation.
  • For top hung, bottom hung and turning windows.
  • Not appropriate for roof windows.

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WMX 823

About WMX 823

Main features

  • 24V Nominal voltage

    24V Nominal voltage

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

Smoke ventilation

    Smoke ventilation

    The product is suitable for smoke ventilation and use 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

UL certified

    UL certified

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

Natural ventilation

    Natural ventilation

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

Product Details

Programmable 24V DC chain actuator for concealed installation for smoke and comfort ventilation.

– to be used together with ±24V control units or control units with MotorLink®
– can be used together with espagnolette WMB
– external safety edge can be connected directly to the actuator (actuator version ’E’)
– available with and without UL certification:
   - Europe: order without UL certification (version 0)
   - USA / Canada: order with UL certification (version U)
– synchronization of up to four window actuators – no need for an external
   synchronization module
– genuine position feedback and three speeds when using control unit with MotorLink®
– soft close
– 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
– 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 50 - 500mm in increments of 10mm
Opening speed 9mm/s (programmable 3 - 9.5mm/s)
Pressure force dependent on chain length
- see the table on the product sheet
Tractive force 200N
Voltage: nominal 24V DC
24V DC (max. 10% ripple)
Current consumption 1A
Size 517 x 30.5 x 42mm (W x H x D)
Colour aluminium (RAL 9006)

WMX 823 is also awailable as "WMX 523" with 150N/150N pressure/tractive force, 0.5A current consumption - for further information see the product sheet below.

Delivery includes

Chain actuator with 100mm cable with fast-in/fast-on connector.

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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