The casings are made of galvanised sheet steel, formed as a rectangular duct, for direct installation in air ducts in any position. Suction and pressure side equipped with standard flanges. The complete motor-impeller unit can be folded out for cleaning purposes. The sound-proofed series (..WS) provides extremely low noise values with a space-saving, sound-absorbing perforated plate coating at concise points. The fans are only suitable for indoor installation.
Properties
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flow rates up to 12,000 m³/h
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duct size: 40 x 20 cm to 100 x 50 cm
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swing out motor and impeller unit
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backward curved impellers
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integrated control system (EC controller)
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speed is 100% infinitely variable
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sound-proofed version possible (..WS)
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Impellers
nAluminium sheet impellers with backward curved blades are used. The impellers are mounted directly on the rotors of the external rotor motors
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Electrical connection
nIntegrated motor protection is indicated via an alarm relay. In the “open loop” (standard) model, the speed is continuously provided by a 0-10V signal or a potentiometer (accessory).
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Direction of rotation
nThe direction of rotation is clockwise as seen from the suction side.
