The Ruck ISOR 250 E2 K 01 is a fully insulated 250mm single box fan designed for quiet and efficient ventilation. It features a backward curved centrifugal impeller within a galvanized sheet steel housing and connection spigots with double lip seals for secure airflow. The swing-out fan unit allows easy maintenance. Powered by a robust single-phase AC motor with voltage control, the fan also includes an integrated thermal switch for safe operation. Suitable for outdoor installation, this fan delivers reliable and durable performance in various environments.