The Ruck 355mm ETAMASTER EC Inline Mixed Flow Fan EM 355 EC 02 is a high-efficiency diagonal fan designed for dependable airflow performance across a range of applications. It incorporates optimally tuned, CFD-optimized aerodynamics to support efficient operation, along with a durable housing made from impact-resistant, reinforced polypropylene. The fan is powered by a high-efficiency IE5 EC motor that provides stepless controllability, and it includes a potentiometer for easy connection within the terminal box. Suitable for continuous use, the unit can convey medium temperatures up to 60 °C. As part of the ETAMASTER series, it has been recognised as a benchmark for efficiency since 2012.