Helios Fans HSD 315/4

The Helios HSD 315/4 is a high-performance axial fan engineered for efficient ventilation. It features a sturdy cylindrical duct casing made from galvanised sheet steel, reinforced with two swaged stiffening rings to ensure structural integrity. The grille is constructed from impact-resistant polymers for durability and safety.

This model incorporates a highly efficient profiled blade impeller, crafted from polymers and aerodynamically optimized for enhanced airflow. The impeller is dynamically balanced to minimise vibration and noise, and the fan operates reliably within a temperature range from ‑30 °C to +60 °C.

The fan is powered by a totally enclosed 3‑phase squirrel cage motor equipped with built-in thermal contacts for protection. The motor is maintenance-free, speed controllable through voltage reduction, and features low-noise sealed-for-life ball bearings to ensure quiet and long-lasting operation.