170M5448 Eaton Bussmann 800A Class aR High Speed Fuse
170M5448 Eaton Bussmann 800A Class aR High Speed Fuse

170M5448 Eaton Bussmann 800A Class aR High Speed Fuse

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Eaton Bussmann 170M5448 — 800A Class aR high speed fuse, 100 kAIC interrupting. Protects semiconductors in drives, rectifiers and inverters.
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    170M5448 Eaton Bussmann 800A Class aR High Speed Fuse

    At a Glance
    • 1000 Vac, 1000 Vdc rated voltage, 800 A rated current
    • 100 kAIC interrupting rating
    • Class aR time-current characteristic
    • Centre fuse status indicator

    The Eaton Bussmann 170M5448 is a square body fuse with 1000 Vac, 1000 Vdc rated voltage, 800 A rated current, 100 kAIC interrupting capacity, carrying a Class aR time-current characteristic. Construction is centre fuse status indicator.

    Specifications

    General specifications
    Model CodeFUSE 800A 1000V 2BKN/80 AR
    UPC051712261340
    EAN5027590457217
    Product Length/Depth92 mm
    Product Height60 mm
    Product Width163 mm
    Product Weight818 g
    Global Catalog170M5448
    Product specifications
    Amperage Rating800 A
    Breaking capacity100 kA
    Fuse indicatorCentre fuse status indicator
    Insulated metal gripping lugs (IMGL)No
    Utilization categoryaR (accompanied semiconductor protection)
    Voltage typeAC
    Fuse size2
    Rated voltage AC1000 V
    Center-to-center distance of connections80.3 mm
    Current typeAC
    Mounting dimensionM10
    ClassClass aR
    Clearing (I2T)1200000 at 1000 V, 1550000 at 1250 V
    Watt losses120 W
    Fuse shapeSquare body, flush end contacts
    Pre arc (I2T)245000
    ColorNone
    Interrupt rating100 kAIC
    Fitted with:Type K Indicator for micro
    Construction size2
    Mounting methodFlush
    Packaging typeStandard
    Voltage rating1000 Vac, 1000 Vdc
    TypeFuse
    ApplicationSemiconductor, DC Common bus, DC drives, power converters/rectifiers
    Fuse typeFlush end BKN/80 Type K Indicator for Micro
    Fuse system (according to IEC 60269)IEC 60269-4 flush end connections type A

    Series Selection Table

    170M5448 series selection table
    Ampere ratings, dimensions and catalog numbers across the Square Body Fuse family, reproduced from the Eaton Bussmann datasheet.

    Applications

    • Industrial equipment

    Selection Notes

    • Check the voltage rating against the system voltage, and the interrupting rating against the available fault current, before specifying.

    Common Questions

    What are the ratings of the Eaton Bussmann 170M5448?
    1000 Vac, 1000 Vdc / 800 A, with a 100 kAIC interrupting rating.
    How much fault current can the 170M5448 interrupt?
    100 kAIC. The available fault current at the installation point must not exceed this value.
    What does Class aR mean for the 170M5448?
    Class aR defines the fuse's time-current characteristic. E-rated fuses carry a defined melting curve so they coordinate predictably with upstream and downstream devices; mixing E and non-E ratings in one feeder defeats that coordination.
    How should I select the 170M5448 for a circuit?
    Match the voltage rating to the system voltage, keep the continuous current above the load current, and check that the interrupting rating exceeds the available fault current. In medium voltage work, select on the transformer or feeder fault level rather than the load current alone.

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