The LB Fans LCA351438 is a long cased axial fan suitable for commercial ventilation applications. It features a 350mm adjustable polypropylene impeller set at 38° and operates with a single-phase, 4‑pole motor. The motor is IP55 rated and uses Class F insulation, allowing operation in ambient temperatures up to 54˚C. Most models in this series offer 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 according to BS EN ISO 9001:2015 standards, its performance is tested to BS 848 parts 1, 2 and ISO 5801. This model comes with a 2‑year guarantee.