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WindowMaster WMX 814-1B0400S

The WindowMaster WMX 814-1B0400S is a high-performance 24V DC chain actuator engineered for precision window automation in both comfort and smoke ventilation (SHEV) applications. Part of the elite WMX 800 series, this Danish-designed motor features a 400mm stroke length and proprietary TrueSpeed™ technology, ensuring ultra-quiet, synchronized movement. Housed in a slim anodized aluminum casing, it provides a sophisticated solution for modern architectural glass, supporting MotorLink® communication for advanced building management system integration.

Quick Answer

The WMX 814-1B0400S is best used for automating top-hung, bottom-hung, or turning windows that require a significant 400mm opening for maximum airflow, specifically in environments where near-silent operation and digital synchronization are required.

✓TrueSpeed™ technology ensures 100% synchronized movement between multiple motors.
✓Ultra-quiet operation at ≤25 dBA (1 mm/s speed) for noise-sensitive environments.
✓Extended 400mm stroke length with programmable travel distance settings.
✓Integrated MotorLink® support for two-way communication and precise positioning.
✓Robust 250N pressure force capacity with an electronic safety-stop mechanism.

Choose the WindowMaster WMX 814-1B0400S if your project demands a long-stroke (400mm) actuator that is virtually silent and capable of perfectly synchronized operation on heavy or wide windows.

✓ Who Should Buy

  • •Commercial HVAC contractors installing SHEV (Smoke and Heat Exhaust Ventilation) systems.
  • •Architects specifying slim-profile automation for high-end residential glass facades.
  • •Facility managers seeking to upgrade to MotorLink® compatible smart building systems.

✕ Who Should Avoid

  • •DIY users looking for a direct 110V/230V AC plug-and-play solution without a DC transformer.
  • •Budget-constrained projects where basic non-synchronous motor performance is sufficient.
Product Overview
The WindowMaster WMX 814-1B0400S represents the gold standard in motorized window hardware. Its compact dimensions (400x37x25mm) allow for discreet surface mounting or even concealed installation within window profiles. Designed with a high-grade stainless steel chain and an IP32-rated aluminum housing, this actuator is built to withstand the rigors of daily comfort ventilation while maintaining the durability required for life-safety smoke extraction systems. Technicians favor this model for its programmable nature; the stroke and speed can be fine-tuned using specialized software to match the specific weight and geometry of the window. This prevents frame racking and extends the longevity of the window seals. Whether integrated into a smart home via ±24V control or a large-scale commercial project using MotorLink®, the WMX 814-1B0400S delivers unmatched reliability and aesthetic appeal.

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Engineering Analysis
The WMX 814-1B0400S utilizes a microprocessor-controlled 24V DC motor that manages energy consumption via Pulse Width Modulation (PWM). The internal sensors provide real-time feedback on the chain's position, allowing for millimetric accuracy in opening. The engineering of the steel chain involves a specific link geometry that allows for high tensile and compressive strength despite the slim profile. Thermal resistance up to +74°C ensures the unit remains operational during the early stages of a fire, fulfilling its role in automated smoke clearance strategies.

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