Eaton Cooper Power Series Installation Instructions Manual

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GeneralEaton provides extra protection during refusingand switching operations when used in serieswith isolation links from its Cooper Power™ seriesBay-O-Net type fuse or its Cooper Power seriesMagneX™ interrupter.Isolation links are not fuses and do not have aninterrupting rating. During a transformer failure,the isolation link will melt so that the openedprimary circuit of a faulted transformer cannot bere-energized by the line crew.ApplicationsBay-O-Net assembliesIsolation links are used in series with Eaton'sCooper Power series Bay-O-Net type expulsionfuses to provide extra protection during re-fusingoperations. They are coordinated to operate athigh current levels that are typical of a transformerfailure.MagneX interrupterIsolation links are also used in series with theMagneX interrupter to provide extra protectionduring switching operations. The MagneXinterrupter isolation link has arc shortening tabsto reduce the arc length and thus reduce theI2t energy released during operation. They arecoordinated to operate at high current levels thatare typical of a transformer failure.InstallationNo special tools are required. Isolation linksare bolted onto Bay-O-Net fuse assemblies orMagneX interrupters in series between theprimary transformer bushing and primary coil.Refer to Service Information MN132003ENSidewall-Mounted and Cover-Mounted Bay-O-Net Fuse Assembly Installation Instructions andMN132004EN (S240-34-1) Single-Phase MagneXInterrupter Installation Instructions for details.Ordering informationTo order Eaton's Cooper Power series isolationlink, first refer to Catalog Data CA132009EN(current sensing), CA132010EN (dual sensing),CA132011EN (dual element), or CA132007EN (highampere overload) for details on correspondingBay-O-Net fuses, or Catalog CA132016EN fordetails on MagneX interrupter elements. For thefuse elements, use Table 1 to cross reference theisolation link required. For the MagneX interrupterelements, use Table 2 to cross-reference theappropriate element.Isolation linkFusing EquipmentCatalog DataCA132012EN Effective February 2015Supersedes 240-47 May 2010COOPER P O W ER SERIES

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