Cooper Bussmann Electronics Short-Circuit Current Rating manual

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Table of contents for the manual

  • Page 1

    Simplified Guide T o Under standing Shor t-Cir cuit Cur r ent Ra ting FIND IT , FIX IT , FORGET IT[...]

  • Page 2

    What Is A Short-Circuit Current Rating (SCCR)? SCCRs on components and equipment represent the maximum level of short-circuit current that the component or equipment can withstand and is used for determining compliance with NEC ® 1 10.10. This rating can be marked on individual components or assemblies. The new SCCRs represent the maximum amount o[...]

  • Page 3

    Use this table to initiate the process of identifying the shor t-cir cuit cur r ent r ating of y our components and de vices in pow er cir cuits. F or fur ther infor mation contact y our local Cooper Bussmann sales engineer , Cooper Bussmann Application Engineering, or visit www .cooperbussmann.com. Suppl y Disconnect and OCPD F eeder Cir cuit OCPD[...]

  • Page 4

    Fuse Holder Busbar Molded Case Switch 200kA* UL508 Manual Motor Star ter 5kA*** UL508 Switch 5kA*** Driv es 5kA*** Contactors 5kA*** R eceptacle 10kA GFCI R eceptacle 2kA 10kA 5kA Default V alue Y our V alue Glossary of T erms Industrial Control Panel - An assembly of a systematic and standard arrangement of two or more components such as motor con[...]

  • Page 5

    FIND IT – Look for ... the Weakest Link The SCCR marking for the assembly will be based upon the lowest short-circuit current or withstand rating of any power circuit component contained within the assembly — or the “ weakest link ”. Many components used in industrial control panels, industrial machinery and HV AC equipment may be the weake[...]

  • Page 6

    ©2005 Cooper Bussmann • St. Louis, MO 63178 636-394-2877 • www .cooperbussmann.com Printed in USA Reorder #7009 11-05-5M Cooper Bussmann Pr oducts And T ec hnical Suppor t Deliv er ed Wor ld wide Customer Assistance Customer Satisfaction T eam The Cooper Bussmann Customer Satisfaction T eam is available to answer questions regarding Cooper Bus[...]