The LB Fans Long Cased Axial Fan LCA1253424 is built for reliable commercial ventilation, featuring a three-phase 4‑pole motor with a 24° pitch. The motor is IP55 protected and Class F insulated, capable of operating in ambient temperatures up to 54°C. Most models are speed controllable using a transformer or inverter, providing flexible airflow management. The fan is equipped with 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 is tested in line with BS 848 Parts 1 & 2 and ISO 5801. Each model comes with a 2‑year guarantee, ensuring dependable operation and long-term durability.