The Ruck ISOR 450 E4 K 01 is a fully insulated 450mm single box fan designed for quiet and efficient ventilation. It features a backward curved centrifugal impeller housed in robust galvanized sheet steel for strength and long service life. The connection spigots include double lip seals to provide secure and reliable airflow. The swing-out fan unit allows straightforward access for maintenance. Equipped with a single-phase AC motor that is voltage controllable, the fan also incorporates an integrated thermal switch for added safety. Suitable for outdoor installation, this model delivers consistent and dependable performance across a range of ventilation applications.