Systemair DHS 400DS Sileo Centrifugal Roof Fan – Horizontal Discharge, 2,620m³/h, High Efficiency, Low Noise, Aluminum Casing, Galvanized Steel Base

• High Performance & Low Noise: 3D profiled impellers with backward-curved blades deliver 2,620m³/h airflow while minimizing sound levels.
• Durable Construction: Aluminum casing and galvanized steel base for long-lasting durability, suitable for coastal applications.
• Motor Protection: Integrated thermal contacts prevent motor overheating; motors up to size 311 have manual reset, larger sizes compatible with external protection devices.
• Speed Controllable: External rotor motors are fully speed-controllable via voltage or frequency converter (requires all pole sineFilter).
• Maintenance-Free Reliability: Vibration-dampened motor mounts, composite material impellers, and high-efficiency fan blade design ensure dependable operation.

The Systemair DHS 400DS Sileo Centrifugal Roof Fan is designed for high air volume applications requiring medium pressure and exceptionally low noise levels. Featuring 3D profiled impellers with backward-curved blades and external rotor motors, this horizontal discharge fan offers speed control via voltage adjustment or frequency converters (with sineFilter for optimal performance). The robust aluminum casing and galvanized steel base make it ideal for coastal environments, while vibration-dampening motor mounts reduce operational noise. Integrated thermal contacts protect the motor from overheating, ensuring safety and reliability. Maintenance-free and highly efficient, the DHS 400DS Sileo is perfect for commercial, industrial, or demanding ventilation systems.