SafetySwitchesTrappedKeySwitchesR3-102Visitourwebsite:www.ab.com/catalogsPublicationS117-CA001A-EN-POverviewGeneralPrinciples9-3-TrappedKeySwitches11-Cat.No.IndexLogicPowerInterlockingandControlSolutionsTrappedKeyInterlocks—WhyUseThem?Baseduponthepremisethatnoonekeycanbeintwoplacesatonce,keyinterlocksystemscanbeconfiguredtoprovidethatapredeterminedsequenceofeventstakesplaceorthathazardshavebeenreducedbeforeoperatorscanbecomeexposedtothem.Itisamechanicalsystemandisthereforewidelyusedinapplicationsincludingthosewherethelocationofplant,environmentorexplosiveatmospheresmaketheuseofelectricalinterlocksystemsunsuitableorexpensivetoinstall.Inaddition,uniquecodingcanbeprovided,leadingtoagreaterdegreeofsecurityandtamper-resistance.WhyProsafe?Inordertoderivethefullbenefitsfromatrappedkeyinterlockingsystemitscomponentsmustbetotallypractical,easilymaintainableandreadilyavailable.Prosafe'suniquekeyandcodebarrelgivestheabilityforevencomplicatedinterlockingsystemsandsparepartstobeorderedfromourworldwidenetworkofdistributors—fast!Afirstfortrappedkeyinterlocks.FiveUniqueProsafeBenefitsComparethefollowingtoothertrappedkeymanufacturers:1.Allstainlessinterlockingandcodedparts—includingthecodebarrelandinternalcomponentsatnoextracost.2.Weathercapasstandard—noextrachargefordustcapsandseals.3.Standardredcolor-codedkeyandIDtags—atnoextracharge.4.Customcolor/textkeysandIDtags—nominalextracharge.5.Acompleterangeofisolators,keyexchange,miniaturevalveinterlocksandgateinterlocks—allusingthesamekeyprinciple.CEMarking—TestedandApprovedOnlyProsafeproductscarrytheprestigiousBGmark.Asignofsafety,independentlytestedbytheGermanBerufsgenossen-schaftlichesInstitutfürArbeitssicherheit,"BIA."AdditionaltestsforvalveinterlocksincludeLloydsCertificateforfiretestandsalt-mistresistance.Over100,000OperationsProsafeproductshavebeensubjectedtoindependent,exhaustivetesting.Withonlyasmallamountoflubricantaddedinfrequently,keyswereinserted,rotatedandremovedatarateof12timesperminute.After100,000operations(at10operationsadaythisisequivalentto27years)theunitwasfunctioningsatisfactorilyandmostimportantlywould"pass"onlytheoriginalorequivalentnewkey.Noincorrectkeyscouldoperatethelock,underliningtheunit'sintegrityaswellaslongevity.TheProsafeAdvantageStainlesssteelconstruction.CNCprecisioncutkeys03-SafetySw_5_TrapKey5/6/201010:48AMPage3-102RSafetySwitchesTrappedKeySwitches3-103Visitourwebsite:www.ab.com/catalogsPublicationS117-CA001A-EN-POverviewGeneralPrinciples9-3-TrappedKeySwitches11-Cat.No.IndexLogicPowerTheAdvantageAllstainlesssteelconstructionTamper-resistantscrewsWeathercapsuppliedasstandardwithcolorcodedtagging.Ruggedandreliablepush-pulloperationnospringsorcamstofail.Codebarrels:Factoryassembledtoensuresafetyintegrity.Internalcomponentsarecaptivewithinthecodebarrel.ProsafeKeysCompact,solidandsturdykeyssuppliedwithdustsealsandcodedtagging.Optionalcolors/textareavailable.03-SafetySw_5_TrapKey5/6/201010:48AMPage3-103SafetySwitchesTrappedKeySwitchesR3-104Visitourwebsite:www.ab.com/catalogsPublicationS117-CA001A-EN-POverviewGeneralPrinciples9-3-TrappedKeySwitches11-Cat.No.IndexLogicPowerDesignSuggestionsforanInterlockingSystemPlantandMachineryInterlockingAADDAABBCBCDCCCCPrimaryhazards(Powerisolation)AuxiliaryhazardsKeycontrolelementGuardedareaaccessAncillaryfunctionsRotarykeyswitch3PortspoolvalveTimeddelayunitRotaryk...
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