Helios Fans DV EC 400 B Eco

The Helios DV EC 400 B Eco is a roof fan designed with advanced EC technology for efficient and reliable ventilation. Its housing is aerodynamically shaped from durable grey polypropylene and optimized for horizontal installation with a diagonal discharge. The fan operates within a temperature range of ‑30 to +60 °C and features integrated guide vanes to maximize airflow efficiency.

The aluminium mixed flow impeller, dynamically balanced with the motor, ensures smooth, quiet performance.

Powered by an electronically commutated DC external rotor motor with ball bearings, this fan is built for continuous operation and maintains high efficiency even during speed-controlled use. The motor is maintenance-free and designed to suppress radio interference. The fan supports stepless speed adjustment using the P..10 speed potentiometer (available as an accessory). When paired with the universal EUR EC control system (optional), the fan can regulate ventilation based on differential pressure, differential temperature, or flow velocity, providing flexible control to meet various ventilation needs.