The BIFA Three Phase 4 Pole 12-degree 630mm bifurcated axial fan delivers reliable airflow performance for a wide range of commercial ventilation applications. Available in diameters from 250mm to 1000mm, this fan is built with IP55-protected motors and Class ‘F’ insulation for enhanced safety and long service life. It can operate in ambient temperatures up to 200°C and offers speed control via transformer or inverter when the air temperature remains below 60°C. An IP55-rated terminal box ensures dependable electrical protection, while its capability to handle up to 95% relative humidity makes it suitable for challenging environments. Manufactured to BS EN ISO 9001:2015 standards and tested to BS 848 parts 1 and 2 and ISO 5801, the BIFA633412 provides efficiency, durability, and consistent performance. Supplied with a 2‑year guarantee, it is an excellent choice for commercial ventilation projects.