Fuse, XRNT 12kV

General XIKAIHVFuseshaveparallelconnectedpuresilverfuse-elements.Thedesignandmethodofproductionoftheelementsensuresnarrowtolerancesoftime-currentcharacteristics. Thefuseelementsarewoundonaceramicsupportandareattachedtothesilverplatedconnectioncapsbymeansofspot-welding.Theconnectioncapsarefittedinsidethesilverplatedcopperendcapsbyspotwelding.Thecopperendcapsthemselvesarepress-fittedontotheporcelaintubewhichisglazedinsideandoutside.Theendcapsarefurthermoremechanicallyfixedtotheporcelaintubeandadditionallysealedbyadurableelasticsealingmedium.Thissealingmethodhasbeenprovenovermanydecadesofpositivefieldexperienceandensurestightnessagainstingressofhumidity. Type RatedVoltage(kV) FuseCurrent(A) DimensionØA*L(mm) Weight(kg) BreakingCurrent(kA) XRNT1-7.2 7.2 3.15,4,5,6.3,10,16,20,25,31.5,40,50,63 Ø51*292 1.8 50 71,80,100,125,160 Ø76*292 3.8 200,224,250 Ø88*292 3.8 XRNT1-12 12 2,3.15,4,5,6.3,10,16,20,25,31.5,40,50,63 Ø51*292 1.8 50 71,80 Ø76*292 4.6 100,125 Ø76*292 3.8 160,200 Ø88*292 3.8 224,250 Ø88*442 3.4 315 Ø88*537 8.2 XRNT1-24 24 6.3,10,16,20,25,31.5 Ø51*442 2.3 50 40,50,63,71,80 Ø76*442 4.6 100,125 Ø88*442 5.4 40 160,200 Ø88*537 8.5 31.5