The BIFA Three Phase 4 Pole 18-degree 900mm bifurcated axial fan is engineered for high-performance commercial ventilation. Suitable for diameters from 250mm to 1000mm, it features an IP55-rated motor with Class ‘F’ insulation, designed to withstand ambient temperatures up to 200°C. Fan speed can be adjusted via transformer or inverter when the surrounding air temperature does not exceed 60°C. The robust IP55 terminal box ensures protection, while the fan performs reliably in environments with up to 95% relative humidity. Manufactured in compliance with BS EN ISO 9001:2015 and tested to BS 848 parts 1,2 and ISO 5801, this fan is backed by a 2‑year guarantee for dependable operation.