The LB Fans LCA403412 long cased axial fan is a durable and efficient solution for commercial ventilation needs. Built with a three-phase, 4‑pole motor offering Class ‘F’ insulation and IP55 protection, this unit ensures reliable operation in challenging environments. Suitable for continuous use at ambient temperatures up to 54˚C, the fan is also compatible with both transformer and inverter speed control systems. Its polypropylene impeller is factory set at a 12° pitch, delivering consistent airflow performance. With an IP55-rated terminal box for added protection and suitability for environments with up to 95% relative humidity, this model is manufactured to BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1, 2, and ISO 5801. The LCA403412 is supplied with a 2‑year guarantee, making it a trusted choice for commercial ventilation systems.