The BIFA Three Phase 4 Pole 26-degree 900mm bifurcated axial fan is engineered for reliable commercial ventilation. Supporting diameters from 250mm to 1000mm, it features a motor with IP55 protection and Class ‘F’ insulation, capable of operating in ambient temperatures up to 200°C. Fan speed can be controlled via transformer or inverter when ambient air temperatures do not exceed 60°C. An IP55 terminal box ensures suitability for environments with up to 95% relative humidity. Manufactured in accordance with BS EN ISO 9001:2015 and performance-tested to BS 848 parts 1,2 and ISO 5801, this fan includes a 2‑year guarantee for dependable, long-term operation.