• T-Tron JJN Series Fuse - icon
  • T-Tron JJN Series Fuse - icon
  • T-Tron JJN Series Fuse - icon
  • T-Tron JJN Series Fuse - icon
  • T-Tron JJN Series Fuse - icon
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Cooper Bussmann T-Tron® JJN Series Fuses

Very Fast-Acting, Current-Limiting Fuses

CB-JJN-60
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What's special about these fuses?

  • Compact size allows for installation in panel boards and control centers . Excellent choice for system upgrading when current circuit breakers are not able to safely interrupt larger available short-circuit currents.
  • T-Tron® fuses offer a broad range of coverage, independent of breaker manufacturer.
  • Class T fuses provide current limitation for non-inductive circuits to maximum ground fault and short-circuit conditions.
  • Click for More Features
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  • CEULCSA Approved

The most important component of the fuse is the element. This is generally made of a high conductivity material such as pure copper, silver-plated copper or even silver. The T-Tron® is a very fast acting fuse which is equipped with a silver element for high current limiting ability.

Part # IMG Amps Dimensions Weight Price
CB-JJN-60 T-Tron JJN Series Fuse - icon 60A 0.88"Lx 0.56"D 0.1 lb.
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Manufacturer Direct
CB-JJN-150 T-Tron JJN Series Fuse - icon 150A 2.44"L x 0.88"D 0.15 lb.
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CB-JJN-200 T-Tron JJN Series Fuse - icon 200A 2.44"L x 0.88"D 0.3 lb.
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CB-JJN-300 T-Tron JJN Series Fuse - icon 300A 2.75"L x 1"D 0.3 lb.
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CB-JJN-400 T-Tron JJN Series Fuse - icon 400A 2.75"L x 1"D 0.25 lb.
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CB-JJN-600 T-Tron JJN Series Fuse - icon 600A 3.06"L x 1.25"D 0.3 lb.
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CB-JJN-800 T-Tron JJN Series Fuse - icon 800A 3.38"L x 1.75"D 0.85 lb.
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  • 200,000A interrupting rating provides high ratings at all circuit locations so, no matter where this fuse is placed, the equipment is protected from electrical surge
  • Space-saving fuses offers a high degree of current limitation on short-circuits for unbeatable component protection
  • High speed of response for semiconductor protection
  • UL, CSA, CE rated

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    Ratings:

  • UL Listed–Cartidge Fuses, Nonrenewable, Guide JDDZ, File E4273 (PDF) PDF
  • CSA Certified, Class 1422-02 HRC Type, File 53787C00 (PDF) PDF
  • GE Series Rating Chart (PDF) PDF
  • Siemens Rating Chart (PDF) PDF

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    Typical Applications:

  • Large apartment complexes
  • Multi-family meter stacks
  • VFD line protection
  • Electric heat circuits
  • Load centers
  • Disconnect switches
  • Meters

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  • JJN Datasheet (PDF) PDF

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    PART # Maximum AC Voltage Amperage Rating AC Interrupting Ratings Fuse Class Fast Acting Size
    CB-JJN-60 300 60A 200000 at 300V Class T Yes 0.88"L x 0.56"D
    CB-JJN-125 300 125A 200000 at 300V Class T Yes 2.44"Lx 0.88"D
    CB-JJN-150 300 150A 200000 at 300V Class T Yes 2.44"L x 0.88"D
    CB-JJN-200 300 200A 200000 at 300V Class T Yes 2.44"L x 0.88"D
    CB-JJN-300 300 300A 200000 at 300V Class T Yes 2.75"L x 1"D
    CB-JJN-400 300 400A 200000 at 300V Class T Yes 2.75"L x 1"D
    CB-JJN-600 300 600A 200000 at 300V Class T Yes 3.06"L x 1.25"D
    CB-JJN-800 300 800A 200000 at 300V Class T Yes 3.38"L x 1.75"D
    Manuals

     

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    Questions & Answers

    Question:

    Time Curves of 300A - Hi the data sheet doesnt contain any curves for the 300A fuse. Can you please advise?

    Asked by Anonymous user on 12.31 AM Wednesday, 06 August, 2014

    Answer:

    • - Thank you for your question. The time curves chart is on the 2nd page of the data sheet.

      Fernando M. on 09.26 AM Wednesday, 06 August, 2014

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