Properties
- flow rates up to 2,500 m³/h
- size: 100 – 355 mm (tube diameter)
- highly efficient EC technology
- backward curved impellers
- can be used in all mounting positions
- integrated control (EC controller)
- speed is 100% infinitely variable
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Impellers
Backward curved high-performance impellers made of plastic are used. The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G 2,5 / G 6,3 as per DIN ISO 21940-11.
Electrical connection
The electrical connection is made through a terminal box mounted on the casing with protection class IP54. The built-in motor protection is signalled via a digital output or a pulse output.
Assembly
Rigid folded spiral-seam tubes (Spiro), flexible aluminium or plastic tubes with standardised diameter can be used. Rosenberg tube fans can be used in all mounting positions. When used over several floors of a building, the local fire safety regulations must be observed.
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