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Nekos Kato 305 RWA chain actuator

The Nekos Kato 305 RWA is a pinnacle of Italian engineering, specifically designed for high-stakes Smoke and Heat Exhaust Ventilation (SHEV/RWA) systems. Operating on a precise 24V DC circuit, this actuator delivers a robust 300N thrust force across a 300mm stroke, ensuring rapid and reliable window deployment in emergency scenarios. Its sleek, powder-coated aluminium housing ensures both aesthetic integration and industrial-grade durability for safety-critical installations.

Quick Answer

The Nekos Kato 305 RWA is primarily used for automated smoke extraction and natural ventilation in commercial buildings, compatible with top-hung, bottom-hung, and roof windows requiring 24V DC power.

✓Certified 24V DC operation for RWA/SHEV emergency battery-backed systems.
✓High-performance 300N thrust capacity for managing heavy window sashes.
✓Precision-engineered 300mm travel distance for optimized airflow dynamics.
✓Premium Italian-made aluminium housing with a durable powder-coated finish.
✓Integrated electronic safety-stop mechanism to prevent motor strain and frame damage.

The Nekos Kato 305 RWA is the definitive choice for projects requiring European-certified smoke ventilation components. Its 24V DC requirement and 300N thrust make it the industry standard for reliable, life-safety window automation.

✓ Who Should Buy

  • •Commercial facility managers looking to comply with smoke and heat exhaust (SHEV) regulations.
  • •Architects designing sustainable buildings that utilize natural ventilation and automated cooling.
  • •Electrical contractors requiring a certified 24V DC Italian actuator for high-reliability projects.

✕ Who Should Avoid

  • •Residential users seeking a simple 'plug-and-play' AC solution without a transformer or 24V controller.
  • •Outdoor installations requiring IP65 or higher waterproofing for direct exposure to heavy rain.
Product Overview
The Nekos Kato 305 RWA distinguishes itself through its specialized focus on life safety and airflow efficiency. Unlike standard domestic openers, this RWA-specific model is engineered to interface seamlessly with industrial smoke control panels, providing the critical force needed to open heavy vents during fire emergencies. The surface-mounted design allows for versatile installation on various profile types, including timber, PVC, and aluminium frames. Beyond safety, the Kato 305 RWA excels in sustainable building management. It facilitates natural ventilation cycles to reduce HVAC dependency, utilizing its double-link stainless steel chain to maintain rigidity even at full extension. The IP32 rating ensures internal components are protected from condensation and vertical water drops, making it a reliable fixture in high-occupancy commercial environments.

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Engineering Analysis
From a mechanical standpoint, the Kato 305 RWA features a micro-processor controlled stroke end and overload protection. This electronic management prevents the 'hunting' effect common in lower-end actuators, ensuring the window seals are compressed correctly without over-stressing the motor. The use of a double-row link chain allows for a slim profile housing while significantly increasing the buckling load resistance compared to single-link alternatives.

Technical Support & FAQs