Centrifugal Fan in scroll casing DRAD/E

Railway / Wind Power / Compressors / Air Handling Units / Industrial Buildings

The casing is made from galvanised sheet steel and the side parts of the scroll is assembled with the spirally shaped guide plate through a stranding seam. The side parts are produced with nut sets to fix the mounting brackets, which can be fixed in steps of 90°.

Double inlet impeller made of galvanized steel sheet with forward curved blades. Due to the high number of blades results in a sound optimized and at the same time compact design.

Product range: 180, 200, 225, 250, 280, 315, 355, 400 and 450 mm

The voltage controllable AC-motors are characterized by a compact, robust design and a good controlling behaviour in combination with Variable Frequency Drives (VFD) or a transformer.

Voltage controlled AC external rotor motor complies to UL 1004 -1.

The motor protection with Rosenberg AC-motors is provided by thermal contacts put into the windings of the motor. When properly connected these protect the motor from overloading due to phase failure, excessive medium temperature or blocked rotor. If an external evaluation of the thermal contacts is required, we recommend Rosenberg motor protection devices, which are available in various versions as accessories.

The electrical connnection is made via cables from the motor.