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170M3446 Eaton Bussmann 700V 315A Class aR High Speed Fuse
170M3446 Eaton Bussmann 700V 315A Class aR High Speed Fuse

170M3446 Eaton Bussmann 700V 315A Class aR High Speed Fuse

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Eaton Bussmann 170M3446 — 700V 315A Class aR high speed fuse, 100 kAIC interrupting. Protects semiconductors in drives, rectifiers and inverters.
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    170M3496 Eaton Bussmann 1250V 315A High Speed Fuse
    EatonFuseBussmannLow Voltage FusesClass aRSemiconductor Protection700 V (UL), 690 V (IEC)
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    170M3446 Eaton Bussmann 700V 315A Class aR High Speed Fuse

    At a Glance
    • 700 V (UL), 690 V (IEC) rated voltage, 315 A rated current
    • 100 kAIC interrupting rating
    • Class aR time-current characteristic
    • Non Indicating

    The Eaton Bussmann 170M3446 is a square body fuse with 700 V (UL), 690 V (IEC) rated voltage, 315 A rated current, 100 kAIC interrupting capacity, carrying a Class aR time-current characteristic. Construction is non indicating.

    Specifications

    General specifications
    UPC051712256179
    Product Length/Depth59 mm
    Product Height81 mm
    Product Width45 mm
    Product Weight295 g
    Electrical data
    Amperage Rating315 A
    ClassClass aR
    Clearing (I2T)115000 at 1000 V 150000 at 1250 V
    Interrupt rating100 kAIC
    Pre arc (I2T)18500
    Voltage rating700 V (UL), 690 V (IEC)
    Watt losses60 W
    Product specifications
    ApplicationDC common bus DC drives power converters/rectifiers reduced voltage starters
    Fitted with:Type K Indicator for micro
    Fuse indicatorNon Indicating
    Fuse size1*
    Fuse typeFlush end BKN/80 Type K Indicator for Micro

    Series Selection Table

    170M3446 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 170M3446?
    700 V (UL), 690 V (IEC) / 315 A, with a 100 kAIC interrupting rating.
    How much fault current can the 170M3446 interrupt?
    100 kAIC. The available fault current at the installation point must not exceed this value.
    What does Class aR mean for the 170M3446?
    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 170M3446 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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