The LB Fans LCA403420 long cased axial fan is designed for robust and efficient commercial ventilation. Powered by a three-phase, 4‑pole motor with Class ‘F’ insulation, this fan provides reliable operation and long-term durability. The motor is IP55-rated, offering strong protection against dust and water, and can operate effectively in ambient temperatures up to 54˚C. Its polypropylene impeller is factory set to a 20° pitch, ensuring dependable airflow performance for a wide range of applications. Speed control is possible via transformer or inverter, giving flexibility to suit different ventilation demands. Built with an IP55 terminal box and suitable for environments with up to 95% relative humidity, this unit is engineered for tough conditions. Manufactured under BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1, 2 and ISO 5801, the LCA403420 guarantees quality and efficiency. Supplied with a 2‑year warranty, it is a dependable choice for commercial projects requiring reliable airflow solutions.