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Bussmann series Class T Fuses
Bussmann's Class T current-limiting, fast-acting fuses. Provides 10X better current limitation to help prevent equipment damage caused by short-circuit events. 200 kA Interrupting rating complies with NEC® Section 110.9 for today’s large capacity systems. Small, space-saving fuses provide a high degree of current limitation on short-circuits for excellent component protection.
Core features
- Series combination ratings with branch circuit breakers allows broad range of coverage, independent of breaker manufacturer.
- Current limitation for non-inductive circuits provides Class T current-limiting response to maximum ground fault and short-circuit conditions.
- 200kA interrupting rating provides high ratings at all circuit locations. Small footprint allows more efficient use of available space.
Benefits of Class T fuses
Small, space-saving fuses provide 10x better current limitation to help prevent equipment damage caused by short-circuit events.
Bussmann series Fuseology
An introduction to understanding fuses and how they are applied for providing overcurrent protection.
Helpful Apps & Resources
Specifications
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Eaton Bussmann series 25499 fuse, 20A, Gold plated brass endcaps
Eaton Bussmann series 25499 fuse, 8A, Nickel-plated brass endcaps
Eaton Bussmann series JJS fuse, Small footprint, 600V, 175A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 200A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 3A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 30A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJN fuse, 300V, 1A, 200 kAIC at 300 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJN fuse, 300V, 10A, 200 kAIC at 300 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 170 Vdc, 1000A, 200 kAIC at 300 Vac, 100 kAIC at 170 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 110A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 170 Vdc, 1200A, 200 kAIC at 300 Vac, 100 kAIC at 170 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 125A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 15A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 150A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 175A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300V, 2A, 200 kAIC at 300 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 20A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 200A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 225A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 25A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 250A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300V, 3A, 200 kAIC at 300 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 30A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 300A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 35A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 350A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 40A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 400A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, Non Indicating, Class T - JJN-40LS
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 45A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 450A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 50A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 500A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300V, 6A, 200 kAIC at 300 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 60A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 600A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, Non Indicating, Class T - JJN-60LS
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 70A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 170 Vdc, 700A, 200 kAIC at 300 Vac, 100 kAIC at 170 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 80A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 170 Vdc, 800A, 200 kAIC at 300 Vac, 100 kAIC at 170 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJN fuse, 300 Vac, 160 Vdc, 90A, 200 kAIC at 300 Vac, 20 kAIC at 160 Vdc, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 1A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 10A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 100A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 110A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 125A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 15A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Ferrule end X ferrule end, Class T
Eaton Bussmann series JJS fuse, Small footprint, 600V, 150A, 200 kAIC at 600 Vac, Non Indicating, Current-limiting, Very Fast Acting Fuse, Bolted blade end X bolted blade end, Class T
Download Links
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Product change notice on fuse labeling JJN and JJS Class T fuses.(PDF 94 KB, 12/12/2019)
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Specifications and technical details for the 300V Class T JJN fuse in ratings from 1 to 1200 amps(PDF 843 KB, 12/12/2019)
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Specifications and technical details for the 600V UL Class T JJS fuse in ratings from 1 to 800 amps.(PDF 1 MB, 7/1/2019)
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Contact information
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Ask our application engineers about Bussmann Class T fuses.
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Eaton’s mission is to improve the quality of life and the environment through the use of power management technologies and services. We provide sustainable solutions that help our customers effectively manage electrical, hydraulic, and mechanical power – more safely, more efficiently, and more reliably. Eaton’s 2020 revenues were $17.9 billion, and we sell products to customers in more than 175 countries.
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