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

WMX 823

  • 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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About WMX 823

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 control panel



    The product communicates with control panels 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 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
– 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


Installation TypeIntegrated
Surface mounted
Window typesBottom hung
Side hung
Top hung
Chain stroke options50 - 500mm in increments of 10mm
Pressure Force200N
Traction force200N
Locking force3000N
Operating speedProgrammable from 3mm/s to 10mm/s
Sound pressure level≤30 dBA (operational speed: 3 mm/s)dBA
≤46 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 mm30,5 x 517 x 42 (H x W x D)mm
Colour optionsGrey (RAL 9006)
MaterialLacquered zinc house with 13mm 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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