The BIFA Three Phase 4 Pole 14-degree 630mm bifurcated axial fan is designed for dependable airflow in commercial ventilation environments. Offered in sizes ranging from 250mm to 1000mm, it features an IP55-protected motor with Class ‘F’ insulation, providing excellent durability and safety. The fan can operate continuously in ambient temperatures up to 200°C and allows speed regulation through transformer or inverter control when air temperatures do not exceed 60°C. An IP55-rated terminal box adds further electrical protection, while its suitability for up to 95% relative humidity ensures reliable use in demanding conditions. Manufactured in accordance with BS EN ISO 9001:2015 and performance tested to BS 848 parts 1 and 2 as well as ISO 5801, the BIFA633414 guarantees consistent efficiency and long service life. Backed by a 2‑year warranty, it is an ideal solution for commercial ventilation systems.