The LB Fans Sabre Sickle Fan Assisted Roof Cowl (model VSR35534A) is designed for efficient commercial ventilation. This 355mm, three-phase, 4‑pole unit features a swept impeller with aerofoil blades, winglets, and a serrated trailing edge to maximise airflow while minimising turbulence. The one-shot die cast aluminium impeller is dynamically balanced for smooth and quiet operation.
The cowl is fully assembled and made from UV-resistant recyclable polymeric material, with optional coloured units available. Optional backdraught shutters and birdguards provide additional functionality. All models are speed controllable and include thermal overload protection for motor safety. Operating up to 70°C and supported by a 2‑year guarantee, the VSR35534A delivers reliable and effective roof ventilation.