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Application

  • Designed for surface mounting.
  • For comfort/smoke ventilation.
  • To be used with all window types.

Description

The WMU 831/851/852 actuators are medium-chain actuators specially designed for large and heavy windows—complete opening of the window within 60 seconds. The TrueSpeed™ feature enables an opening of 1 mm per second, can control several motor lines simultaneously and ensures a higher degree of control.


Features and benefits:

  • To be used together with ±24 V control units or control units with MotorLink®.
  • Can be used together with espagnolette WMB.
  • Available with and without cable: S = cable/ Z = no cable.
  • External safety edge can be connected directly to the actuator.
  • 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 function.
  • Built-in electronic load switch-off/end stop.
  • Electronic actuator with microcontroller.
  • The actuator has an integrated reverse function to ensure a prolonged life span of the window gaskets.
  • Easy mounting.

General information

Color

Grey

Other

Material

Aluminium

Shape

Rectangle

Length

623 mm

Width

57 mm

Height

42 mm

Uniclass

Pr_75_50_02_13 Chain actuatorsPrimary

CAWS

L10/490 Roof ventilators

L10/47 Roof ventilators

L10/25 Aluminium windows

L10/330 Aluminium windows

Specification data - Chain actuators

Stroke

400 mm.

500 mm.

600 mm.

Electrical supply

24 V d.c.

Operation

±24 V d.c. control units.

Control units with MotorLink®.

Finish

Grey (RAL 9006).

Bronze (RAL 8019).

Manufacturer guidance

Other RAL colours available at additional price.

Accessories

None.

WAB 852A Actuator bracket for WMU 852/ 851/ 831.

WAZ 852i Actuator bracket for WMU 852/ 851/ 831.

WAB 827 Z-Bracket for inward opening windows.

WAB 836B Actuator bracket for WMU 836 / 852 / 851 / 831 / 936 / 866.

WAB 836H Actuator bracket for WMU 836 / 852 / 851 / 831 / 936 / 866.

WAB 836E Chain bracket for WMU 836 / 852 / 851 / 831 / 936.

Manufacturer guidance

See separate product sheets for further information.

Actuator

Single.

Double.

Triple.

Quad.

Opening speed

1–12 mm/s (TrueSpeed™).

Certification

CE mark and UL certified.

Guidance for specification option:

For USA/ Canada.

CE mark and EN 12101-2 certified.

Guidance for specification option:

For Europe.

Cable

5 m cable and plug (S).

Plug without cable (Z).

Guidance for specification option:

All actuators without cables are UL 325 listed.

Force

300 N.

Manufacturer guidance

Pressure force [N] (only bottom hung window).

Literature

WMU 831 / 851 / 852 Data Sheet

WMU 831 / 851 / 852 Data Sheet

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