The BIFA Three Phase 4 Pole 22-degree 900mm bifurcated axial fan is engineered for reliable commercial ventilation. Suitable for diameters ranging from 250mm to 1000mm, it features an IP55-rated motor with Class ‘F’ insulation, capable of operating at ambient temperatures up to 200°C. Fan speed can be controlled via transformer or inverter when the ambient air temperature does not exceed 60°C. The IP55 terminal box ensures secure electrical protection, and the fan operates efficiently in environments with up to 95% relative humidity. Manufactured to BS EN ISO 9001:2015 and performance-tested to BS 848 parts 1,2 and ISO 5801, this fan comes with a 2‑year guarantee for dependable long-term use.