The BIFA Three Phase 4 Pole 10-degree 630mm bifurcated axial fan is designed for dependable airflow in commercial ventilation systems. Offered in diameters from 250mm to 1000mm, this model features IP55-protected motors with Class ‘F’ insulation for long-lasting operation. Built to withstand ambient temperatures up to 200°C, it supports speed control through a transformer or inverter when the surrounding air temperature does not exceed 60°C. An IP55-rated terminal box ensures added durability, while suitability for environments with relative humidity up to 95% makes it versatile across demanding applications. Manufactured to BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1 and 2 and ISO 5801, the BIFA633410 combines efficiency and reliability. Backed by a 2‑year guarantee, it is a robust solution for commercial ventilation needs.