Helios RR 315 Single-Stage Radial In-Line Fan

Radial in-line duct fan for direct installation in duct systems. For conveying medium and small air volumes against high resistances. Housing made of galvanized steel sheet with round connecting spigots adapted to standard ducts. Radial impeller with backward-curved blades made of galvanized steel sheet. Pressed directly onto the motor and dynamically balanced as a unit. Low-noise, high efficiency. Single-phase AC external rotor motor, enclosed design, maintenance-free, built-in thermal contacts, sealed, low-noise ball bearings with long-term lubrication. Power control: via electronic controller or stepped transformer.