Casings are made of galvanised steel sheet in the shape of rectangular ducts for direct installation into an air duct in every 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 11,000 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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speed is variable using auto transformers
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extremely low starting current
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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
nThe drive motors are fitted with an outgoing cable. The electrical connection is made via an IP44 terminal box which is supplied loose.
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Direction of rotation
nThe direction of rotation is clockwise as seen from the suction side.
