The LB Fans LCA403440 long cased axial fan delivers reliable performance for commercial ventilation systems. This three-phase, 4‑pole fan features a Class ‘F’ insulated motor with IP55 protection, capable of operating in ambient temperatures up to 54˚C. Its polypropylene impeller, factory-set at a 40° pitch, is adjustable and compatible with speed control via transformer or inverter on most models. Designed to operate in environments with up to 95% relative humidity, the fan also includes an IP55-rated terminal box for secure electrical connections. Manufactured to BS EN ISO 9001:2015 standards and performance-tested to BS 848 parts 1, 2 and ISO 5801, the LCA403440 ensures dependable airflow and comes with a 2‑year guarantee.