The LB Fans LCA353228 is a long cased axial fan engineered for commercial ventilation applications. It features a 350mm adjustable polypropylene impeller set at 28° and operates with a three-phase, 2‑pole motor. The motor is IP55 protected and uses Class F insulation, suitable for ambient temperatures up to 54˚C. Most models in this series allow speed adjustment via a transformer or inverter. The fan comes with 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.