HCTT 4-900B – Axial Roof Mounted Extract / Supply Fan – S&P Range of axial roof fans with horizontal air discharge configuration available in 2 versions: -“B” models for air extraction. -“A” models for air supply. Base manufactured from galvanised sheet steel. Cowl manufactured from spun aluminium. The impellers for models 315 to 400 are made from one-piece injection-moulded plastic, reinforced with chemically anchored fibreglass for extra strength. Models 450 to 1000 feature separate plastic blades secured within a die-cast aluminium hub. Available, depending on the model, with single or three-phase motors in 4, 6, 8 or 4/8 poles. Motors All motors are IP65 (1) Class F (2) with thermal protection (3) and ball bearings greased for life. Electrical supply: -Single phase 230V-50Hz (Capacitor located inside the wiring terminal box). -Three phase 400V-50Hz. (See characteristics chart). All single phase models are speed controllable by voltage except HCTB/4-560, HCTB/4-630. All three phase models are speed controllable by autotransformer, except models HCTT/4-560, HCTT/4-630, Ø 710 to 1000. Three phase models with 1 speed motor are speed controllable by inverter. (1) Models 800 to 1000 are IP55. (2) Air stream temperature limits -40ºC to 70ºC (except models 800 to 1000 suitable for use in environments from -20ºC to 40ºC). (3) Models 800 to 1000 are not equipped with thermal protection. Applications Industrial process ventilation, agricultural facilities, swimming pools and data centres. Product Data Sheet: HCTT Data Sheet
