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1、UL200–7629–0596–4General-UseSnapSwitchesULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMISSIONFROMULThisPDFStandarddownloadedfromwww.bzfxw.comULCOPYRIGHTEDMATERIAL–NOTAUTHORIZEDFORFURTHERREPRODUCTIONORDISTRIBUTIONWITHOUTPERMI
2、SSIONFROMULDECEMBER17,2004−UL20tr3UnderwritersLaboratoriesInc.(UL)333PfingstenRoadNorthbrook,IL60062-2096ULStandardforSafetyforGeneral-UseSnapSwitches,UL20TwelfthEdition,DatedSeptember22,2000Revisions:ThisStandardcontainsrevisionsthroughandincludingDecember17
3、,2004.SummaryofTopicsThisrevisionisbeingissuedtoaddrequirementsfor:1)ThereplacementofthetermNaturalGreywithGrayULStandardsforSafetyaredevelopedandmaintainedintheStandardGeneralizedMarkupLanguage(SGML).SGML--aninternationalstandard(ISO8879-1986)--isadescriptiv
4、emarkuplanguagethatdescribesadocument’sstructureandpurpose,ratherthanitsphysicalappearanceonapage.DuetoformattingdifferencesresultingfromtheuseofUL’snewelectronicpublishingsystem,pleasenotethatadditionalpages(onwhichnorequirementshavebeenchanged)maybeincluded
5、inrevisionpagesduetorelocationofexistingtextandreformattingoftheStandard.Textthathasbeenchangedinanymannerismarkedwithaverticallineinthemargin.Changesinrequirementsaremarkedwithaverticallineinthemarginandarefollowedbyaneffectivedatenoteindicatingthedateofpubl
6、icationorthedateonwhichthechangedrequirementbecomeseffective.Thefollowingtableliststhefutureeffectivedateswiththecorrespondingitem.FutureEffectiveDatesReferencesJune1,2005EntireStandardexceptparagraphsasshownbelow.June1,2006Paragraphs4.1.2,4.9.5.1,5.18.1,7.6.
7、14,and7.6.15TherevisedrequirementsaresubstantiallyinaccordancewithUL’sBulletin(s)onthissubjectdatedDecember22,2003.Thebulletin(s)isnowobsoleteandmaybediscarded.TherevisionsdatedDecember17,2004includeareprintedtitlepage(page1)forthisStandard.Asindicatedontheti
8、tlepage(page1),thisULStandardforSafetyisanAmericanNationalStandard.AttentionisdirectedtothenoteonthetitlepageofthisStandardoutliningtheprocedurestobefollowedtoretaintheapprovedtextofthisA
