The Ruck KVR 3015 E2 40 is a 1‑phase centrifugal box fan designed for dependable and efficient ventilation. It features a backward curved centrifugal impeller that provides stable airflow performance for a range of applications. The housing is constructed from galvanized sheet steel, offering durability and resistance to corrosion. A removable fan unit is included to simplify maintenance and servicing. The robust single-phase AC motor is steplessly controllable, allowing flexible adjustment of airflow as needed. The fan is suitable for continuous operation with conveyed air temperatures up to 70°C. This model is intended for commercial and industrial ventilation systems requiring a reliable and straightforward centrifugal fan solution.