The BIFA Three Phase 4 Pole 26-degree 630mm bifurcated axial fan is designed for robust and reliable performance in commercial ventilation systems. Available in sizes ranging from 250mm to 1000mm, this model is equipped with an IP55-protected motor featuring Class ‘F’ insulation for enhanced durability and efficiency. It can operate in environments with ambient temperatures up to 200°C and allows speed regulation via transformer or inverter when the ambient temperature is below 60°C. The inclusion of an IP55-rated terminal box ensures additional protection and resilience in demanding conditions. Suitable for use in areas with relative humidity up to 95% RH, this fan is built to perform in a wide range of applications. Manufactured in compliance with BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1 and 2 as well as ISO 5801, the BIFA633426 guarantees quality and tested reliability. Backed by a 2‑year guarantee, it offers a dependable solution for commercial ventilation requirements.