Helios Radial In-line Fan, 1-PH RR 160 B

Radial in-line duct fan with 2 speed settings for direct installation in the duct system. For conveying medium and small air volumes against high resistances. Casing made of galvanized sheet steel with round connection spigots designed for standard ducts. Backward-curved centrifugal impeller made of plastic. Directly pressed onto the motor and dynamically balanced as a unit. Low noise, high efficiency. Single-phase AC external rotor motor, enclosed design, maintenance-free, integrated thermal contacts, sealed, low-noise ball bearings with long-term lubrication. Speed control: via electronic controller or stepped transformer or two-speed operation with type DS 2/2 (accessory, item no.: 1267).