Helios Fans DV EC 400 B Pro

The Helios DV EC 400 B Pro is a roof fan equipped with advanced EC technology to deliver efficient and reliable ventilation performance. Its housing is aerodynamically designed from high-quality grey polypropylene, optimized for horizontal installation with a diagonal air discharge. The fan operates effectively within a temperature range of ‑30 to +60 °C and includes integrated guide vanes to enhance airflow efficiency.

Featuring a dynamically balanced aluminium mixed flow impeller combined with the motor, the unit ensures smooth and quiet operation.

This model is powered by a maintenance-free, electronically commutated DC external rotor motor with ball bearings, suitable for continuous operation and maintaining high efficiency even under speed control. The motor is radio suppressed to prevent interference. Additionally, the fan includes integrated time and pressure controls to stabilize ventilation pressure and enable adjustable flow rates, ensuring optimal performance for various ventilation demands.