The Ruck ISOR 500 EC K 01 is a fully insulated 500mm single box fan designed to deliver quiet, efficient, and reliable airflow for a wide range of applications. It incorporates a backward curved centrifugal impeller within a galvanized sheet steel housing, offering durability and stable operation. The connection spigots feature double lip seals for secure and airtight ducting, while the swing-out fan unit provides easy access for cleaning and maintenance. Powered by an external rotor EC motor, the fan offers stepless, energy-efficient control and smooth performance. Internal electronic temperature monitoring enhances operational safety. Suitable for outdoor installation, this model is ideal for commercial, industrial, and general ventilation systems requiring low noise and consistent airflow.