D+H UK

  • D+H louvre window drive LDx-1-PLP, LDx-5, LDx-1-ACB, LDx-5-ACB

LD series: the professional louvre drive

Slim but powerful

The LD features remarkable power. At up to 1800 N, it opens and closes even the heaviest louvre windows quietly and reliably. In addition to the standard version, an ADVANCE version of the LD is also available with Advanced Communication Bus (ACB) technology. This technology is based on the open Modbus RTU protocol, enabling the drive to be integrated easily into the building management system (BMS). Equipped with ACB technology, the LD offers many technological advantages. For example, it can regulate the opening positions of louvre windows for natural ventilation with one-percent accuracy. In addition to its power and versatility, it is also elegant in its design. Both the 230 V and 24 V versions of the slim LD louvre drive fit unobtrusively into the aesthetics of complex façade structures.

  • Ultra-strong holding force of 1800 N for especially heavy or eccentrically hinged louvre windows

  • Ideal for small louvres due to short, narrow design

  • Extremely low operating noise of max. 45 dB(A) for ideal ventilation

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Gray louvre window drive on a louvre window with a white background

Technical features at a glance

  • Powerful louvre window drive

  • Slim design and concealed cable infeed for an elegant profile appearance

  • Option of up to 8 drives and 4 lock drives in one synchronous group

  • Small cable cross-sections: no external power supply unit required for 230 V version

  • High flexibility: adapter for louvre-specific or centred driver holder

  • Saves energy thanks to extremely low current consumption

  • Synchronous operation of up to 8 ACB drives (24 V)

  • ACB drives can be remotely configured using the connected D+H controller

  • Adjustable, multi-stage anti-trap protection system (runtime, force/power, stroke) in accordance with Machinery Directive

  • Window gasket protection thanks to the automatic relief of pressure on window gasket

  • Innovative, protected technological development for a tensile force and force of pressure of 1800 N and holding force of 5000 N despite small dimensions and low current consumption

Supply 24 V DC / 230 V AC
Force of pressure 1400 / 1800 N
Nominal locking force 5000 N
Type of protection IP 40
Stroke 36 - 90 mm
Symbol for air exchange, blue arrows in and out
Symbol for 24 V DC voltage
Symbol for 230 V AC alternating voltage
Green confirmation marker
  • 24 V, 230 V
  • Natural ventilation, smoke extraction
  • ACB technology, PLP technology

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Not sure whether the LDx series is right for your project?With just a few questions, our drive navigator will help you find the right product.
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Different drives in different sizes
Green board with components

ACB technology

The LDx drive series features the D+H communication technology ACB. Especially during major projects, building operators are often faced with the question, "Do all the installed system components also work for smoke extraction and natural ventilation? And if not, where in the network does the problem lie?" ACB allows the drives to communicate with the controllers and gives them feedback about opening widths and statuses. But this is just one major advantage of the innovative bus technology. It also significantly reduces wiring effort, which in turn saves installation effort and costs, and makes it possible to control drives with millimetre precision.

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