KRW 450/4/70/40 – Helios – SwingOut InlineVent Centrifugal Fan For Rectangular Ducting
Duct centrifugal fan with backward curved impeller blades.
For direct mounting in a rectangular duct system, fan unit can be swung out.
Housing made of galvanized sheet steel with channel flange profiles standardized on both sides, space-saving design, easy to service due to the swiveling motor-impeller unit.
High-performance radial impeller with backward curved blades made of plastic and galvanized steel.
Vibration-free running due to dynamic balancing according to quality level G 6.3 DIN ISO 1940 T.1.
Drive: Maintenance-free single-phase AC external rotor motor, closed design, built-in thermal contacts wired in series with the winding (automatically resetting), speed adjustable by means of 5-step transformer or electronically (continuously), winding with moisture protection impregnation, sealed, low-noise ball bearings with long-term lubrication. Mains connection to pre-assembled terminal box (IP44).