The LB Fans Long Cased Axial Fan LCA311428 is designed for efficient commercial ventilation. This single-phase, 4‑pole fan features a 315mm diameter with a 28° blade angle, providing optimized airflow. The Class F insulated motor is protected to IP55, suitable for operation in ambient temperatures up to 54°C. An IP55 terminal box and a factory-set polypropylene impeller ensure reliable performance. Speed can be adjusted via transformer or inverter, making it adaptable to various ventilation systems. Engineered to handle relative humidity levels up to 95%, the LCA311428 is manufactured to BS EN ISO 9001:2015 and performance tested to BS 848 Parts 1 & 2 and ISO 5801. It comes with a 2‑year guarantee for dependable, long-term service.