The LB Fans Long Cased Axial Fan LCA253425 is designed for compact commercial ventilation, featuring a three-phase 4‑pole motor with a 25° pitch. The motor is IP55 protected and Class F insulated, ensuring reliable operation in ambient temperatures up to 54°C. Most models are speed controllable via transformer or inverter, providing adaptable airflow management. The fan includes an IP55-rated terminal box and a factory-set polypropylene impeller that is fully adjustable. Suitable for environments with relative humidity levels up to 95%, this unit is manufactured in compliance with BS EN ISO 9001:2015 standards. Performance testing is conducted to BS 848 Parts 1 & 2 and ISO 5801. Each model comes with a 2‑year guarantee, offering durable and dependable operation.