The LB Fans LCA351418 is a long cased axial fan engineered for commercial ventilation. It features a 350mm adjustable polypropylene impeller set at 18° and operates with a single-phase, 4‑pole motor. The motor has IP55 protection and Class F insulation, suitable for ambient temperatures up to 54˚C. Most models in this range allow speed adjustment via a transformer or inverter. The fan includes an IP55-rated terminal box and is compatible with relative humidity levels up to 95%. Manufactured in accordance with BS EN ISO 9001:2015, its performance is tested to BS 848 parts 1, 2 and ISO 5801 standards. This model comes with a 2‑year guarantee.