The LB Fans Long Cased Axial Fan LCA251430 is built for efficient commercial ventilation, featuring a single-phase 4‑pole motor with a 30° pitch. The motor is IP55 protected and Class F insulated, allowing reliable operation in ambient temperatures up to 54°C. Most models are speed controllable via transformer or inverter, providing flexible airflow adjustment. The fan includes an IP55-rated terminal box and a polypropylene impeller that is factory set but fully adjustable. Designed for environments with relative humidity levels up to 95%, this unit is manufactured according to BS EN ISO 9001:2015 standards. Performance testing is carried out to BS 848 Parts 1 & 2 and ISO 5801. Each fan comes with a 2‑year guarantee, ensuring long-term reliability and consistent operation.