The BIFA Three Phase 4 Pole 38-degree 630mm bifurcated axial fan is designed for efficient and reliable operation in commercial ventilation systems. Offered in diameters from 250mm to 1000mm, this model features an IP55-protected motor with Class ‘F’ insulation, ensuring durability in demanding conditions. Capable of handling ambient temperatures up to 200°C, the fan allows speed regulation via transformer or inverter where the air temperature does not exceed 60°C. An IP55-rated terminal box provides secure connections, and the unit is suitable for environments with relative humidity levels up to 95% RH. Manufactured under BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1 and 2 along with ISO 5801, the BIFA633438 delivers proven quality and performance. Backed by a 2‑year guarantee, it is an excellent choice for robust commercial ventilation requirements.