Helios Fans SKRW EC 315÷50÷25 A

The Helios SKRW EC 315÷50÷25 A is a rectangular EC centrifugal fan designed for in-line installation within rectangular duct systems. The fan casing is constructed from galvanised steel, flanged on both ends, and features a compact design. It is acoustically lined with 50 mm thick mineral fibreboard to ensure sound insulation and quiet operation. The fan is service-friendly, allowing easy cleaning and maintenance through the swing-out motor and impeller unit.

Equipped with a centrifugal backward curved impeller made from durable polymer, the impeller is dynamically balanced for low noise performance. The aerodynamic design optimizes intake airflow using an inlet nozzle.

The fan is powered by an energy-efficient, speed-controlled EC external rotor motor with IP44 protection, offering maximum efficiency. The motor is maintenance-free, ball bearing mounted, and radio interference-free. It includes integrated electronic temperature monitoring for the motor and electronics. Speed control is flexible with a built-in internal potentiometer for adjusting the fan speed between minimum and maximum. Additional stepless speed control options include an external potentiometer or a universal control system EUR-EC. Connection is made via a standard terminal box (IP54) mounted on an extended cable.