The LB Fans Long Cased Axial Fan LCA313428 is designed for reliable commercial ventilation. This three-phase, 4‑pole fan has a 315mm diameter with a 28° blade angle for efficient airflow. Its Class F insulated motor is protected to IP55, supporting maximum ambient temperatures of 54°C. Equipped with an adjustable factory-set polypropylene impeller and an IP55 terminal box, the fan allows speed control via transformer or inverter on most models. Suitable for environments with up to 95% relative humidity, it is manufactured to BS EN ISO 9001:2015 and performance tested to BS 848 Parts 1 & 2 and ISO 5801. The LCA313428 includes a 2‑year guarantee for dependable operation.