The LB Fans LCA series long cased axial fan is designed for commercial ventilation applications. It features a single-phase, 4‑pole motor with IP55 protection and Class ‘F’ insulation, capable of operating in ambient temperatures up to 54˚C. Many models in this range allow speed control via transformer or inverter. The fan is equipped with an IP55-rated terminal box and a factory-set adjustable polypropylene impeller. Suitable for environments with relative humidity levels up to 95%, it is manufactured according to BS EN ISO 9001:2015 standards. Performance has been tested in accordance with BS 848 parts 1 and 2 and ISO 5801. This fan comes with a 2‑year guarantee, providing a reliable solution for efficient commercial ventilation.