FatafatService Logo
No Image Available

WindowMaster WMU 852-2G Motorized Chain Actuator

The WindowMaster WMU 852-2G is a high-performance 24V DC chain actuator engineered specifically for heavy-duty commercial smoke and heat exhaust ventilation (SHEV) systems. Combining a robust 500N load capacity with a precise 400mm stroke, this Danish-engineered device ensures reliable window automation for top-hung and skylight applications, prioritizing safety through integrated obstacle detection and manual override capabilities.

Quick Answer

The WMU 852-2G is a professional-grade chain actuator designed for automated smoke ventilation in commercial buildings, compatible with top-hung windows and skylights requiring 500N of force and 24V DC control systems.

✓Powerful 500N push/pull force engineered for heavy commercial window profiles.
✓Precision 400mm stroke length optimized for maximum airflow during smoke extraction.
✓Durable powder-coated aluminum housing with IP32 weather resistance rating.
✓Integrated electronic safety stop and obstacle detection to prevent structural damage.
✓Designed for seamless integration with 24V DC Smoke Vent (SHEV) control systems.

Specify the WindowMaster WMU 852-2G if your project demands a high-force (500N), safety-certified actuator for commercial smoke ventilation that balances premium Danish build quality with a long 400mm travel distance.

✓ Who Should Buy

  • •Commercial Fire Safety and HVAC contractors specializing in SHEV system installations.
  • •Facility managers of large-scale glass structures or atriums requiring reliable automated airflow.
  • •Architects seeking a slim-profile, high-load (500N) actuator for heavy top-hung window designs.

✕ Who Should Avoid

  • •Residential users looking for a DIY 'plug-and-play' smart home device without a 24V DC controller.
  • •Applications requiring high-pressure water resistance (IP65+) as this unit is rated IP32.
Product Overview
The WindowMaster WMU 852-2G represents the pinnacle of Danish engineering within the prestigious WMU 800 series. Designed to meet the rigorous safety demands of modern commercial architecture, this 24V DC chain actuator provides consistent automated opening and closing for large-scale ventilation projects. Its sleek silver/white aluminum housing not only offers aesthetic versatility for visible installations but also protects the high-torque motor from environmental stressors, making it a staple in high-end office buildings and industrial complexes. Functionality is centered on reliability; the WMU 852-2G is built to operate under the stress of emergency smoke evacuation while maintaining the finesse required for daily natural ventilation. Its compatibility with top-hung and skylight window types makes it one of the most versatile high-load actuators in the WindowMaster catalog, ensuring that even heavy double-glazed units are handled with precision and safety.

Related Products

Engineering Analysis
The internal architecture of the WMU 852-2G features a specialized microprocessor-controlled electronic load cut-out. This system monitors current draw to detect obstacles instantly, halting the motor to prevent injury or hardware failure. The aluminum housing acts as a heat sink, maintaining an operating temperature range of -5°C to +60°C, which is vital for roof-mounted skylights exposed to direct solar gain. Furthermore, the unit includes a manual override mechanism, a critical fail-safe for maintenance and emergency scenarios, ensuring the window can be operated even if the primary control system is inaccessible.

Technical Support & FAQs