CLA-B

Compact sound attenuator with centre baffle for circular ducts

Equipped with an acoustic centre baffle
Extremely low installation height
Very good sound attenuation
Fibre-migration proof
Dim up to 400 air tightness class D
Dim 500 to 800 air tightness class C
Low pressure drop
Mineral wool
Galvanised sheet steel to Environmental Class C3
Fire-resistance class EI30 to EI120*
* See the table for requisite safety distance

Calculate with your requirements

CLA-B - Standard range
Dimension	Length	Working range	Attenuation
mm	mm	m³/s	dB(A)
250-800	500-1200	0-5	5-20

Nordic Swan listed

The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings.

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Include Accessory documents

Document	Article	Document type	Date
Transfer air solutions (pdf 970.08kB)	ALS, CLA-A, GRC, SOTTO	Brochure	06/11/2023
Compact sound attenuator with centre baffle for circular ducts (pdf 304.81kB)	CLA-B	Technical catalogue	15/01/2024
Installation, Maintenance (pdf 239.05kB)	CLA-A; CLA-B	IOM Manual	15/01/2024
Acoustics Overview (pdf 2.43MB)	CLA-A, CLA-B, SORDO-A, SORDO-B, SORDO-C, SORDO-P, SORDO-PF, CALMO, CADENZA, LARGO, LENTO, MORENDO, FACILE, ALD, CTM, CTK	Brochure	08/04/2023
Type approval (pdf 137.87kB)	CLA-A, CLA-B	Quality	20/02/2024

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