For export to Europe:
The CISPR22 Class A limits are equal to the ones for Generic heavy Industrial equipment. Using (not selling) CISPR22 Class A equipment in a residential or light industrial equipment may very well be contrary to the essential requirements of the EMC directive and the CISPR22/EN55022 Class A limits may not automatically create presumption of compliance with them. This may lead to prosecution if your equipment is causing interference and is being checked by the authorities. I do not say the risk is very high, but this clause in the EN55022 has already drawn attention from the EC EMC consultant as being different from the generic class system, and may be modified in the future. (in spite of CENELEC objections). For now selling and using Class A ITE is allowed, but *I* would not rely on that for future developments. Gert Gremmen -----Original Message----- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of am...@westin-emission.no Sent: dinsdag 5 februari 2002 9:30 To: emc-p...@majordomo.ieee.org Subject: SV: ITE Class A vs B Emissions >From chapter 4.1 in CISPR 22:1997: "Class B ITE is intended primarily for use in the domestic environment and my include: - equipment with no fixed place of use; for example, portable equipment powered by built-in batteries; - telecommunication terminal equipment powered by a telecommunication network; - personal computers and auxiliary connected equipment" >From chapter 4.2 in CISPR 22:1997: "Class A ITE is a category of all other ITE which satisfies the class A ITE limits but no the class B ITE limits. Such equipment should not be restricted in its sale but the following warning shall be included in the instructions for use: WARNING - This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures". So, you have the possibility to go for Class A. But I also recall that may test laboratories / notified body classifies class A as a heavy industrial environment. Business/office environment are often classified as residential, commercial and light industrial and therefore class B. Amund -----Opprinnelig melding----- Fra: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]På vegne av richwo...@tycoint.com Sendt: 4. februar 2002 22:40 Til: emc-p...@majordomo.ieee.org Emne: ITE Class A vs B Emissions We currently design our products to comply with the Class B emissions limits of EN 55022, but I am getting a lot of pressure from engineering to allow the limits to be raised to Class A. The equipment is intended for business use only. I understand that Class A is legal in the EU for business equipment, and our customers don't seem to understand or care if the equipment is Class A or B. So, the question is this - Are you successful in marketing your business ITE as Class A? Richard Woods Sensormatic Electronics Tyco International ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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