The Sentinel D‑Box Twin Fan 400mm (Stock Ref: SENT400T) is engineered for high-performance commercial ventilation, combining efficiency, durability, and reliability. Suitable for duct sizes ranging from 100mm to 500mm, this unit delivers airflow rates between 0.001 and 1.3 m³/s and pressures of up to 650 Pa.
Equipped with the latest energy-saving EC/DC motors, the fan ensures low energy consumption while maintaining powerful airflow. Its lockable isolator enhances operational safety, and the robust Aluzinc construction provides long-lasting resistance to corrosion, making it suitable for both internal and external mounting.
Manufactured under BS EN ISO 9001 quality controls and tested in accordance with BS848 Part 1 & 2, the Sentinel D‑Box Twin 400mm is a proven solution for demand-controlled commercial ventilation systems, delivering consistent and reliable performance.