Helios Fans SVR EC 250

The Helios SVR EC 250 is a flat, compact EC centrifugal duct fan engineered for seamless installation into duct systems. Designed for efficiency and reliability, it is suitable for a wide range of residential, commercial, and industrial ventilation applications.

Constructed from robust galvanised sheet steel, the housing features intake and exhaust spigots equipped with twin-seal rubber gaskets, ensuring a secure and leak-free connection with standard ducts. The fan’s motor and impeller unit are designed to swing out, allowing easy cleaning and maintenance access.

This model includes a high-efficiency centrifugal impeller with backward curved blades made from durable polymer. The impeller is dynamically balanced for low-noise operation and reduced vibration, enhancing user comfort.

Powered by a speed-controllable EC external rotor motor with IP54 protection, the fan delivers maximum airflow performance while maintaining energy efficiency. The motor is ball bearing-mounted, maintenance-free, and features integrated electronic temperature monitoring to ensure safe, long-term operation.

Fan speed can be set using the built-in potentiometer or controlled externally via a potentiometer or the Helios EUR-EC system. Electrical connections are made easy and secure through the IP54-rated terminal box mounted on an extended cable.