The BIFA Three Phase 4 Pole 18-degree 560mm axial fan is designed for commercial ventilation applications. It is available in diameters from 250mm to 1000mm and incorporates motors with IP55 protection and Class ‘F’ insulation, providing dependable and long-lasting performance. The fan can function in ambient temperatures up to 200°C, with speed controllable via transformer or inverter when the surrounding air temperature does not exceed 60°C. Equipped with an IP55-rated terminal box, it is suitable for environments with relative humidity levels up to 95%. Manufactured to BS EN ISO 9001:2015 standards, the fan has been performance tested to BS 848 parts 1 and 2 and ISO 5801. The BIFA563418 model includes a 2‑year guarantee, delivering efficient and reliable commercial ventilation.