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Amp-Trap 2000® AJT fuses provide non-indication as well as a SmartSpot visual open fuse indicator. With advanced material technology, the AJT fuse provides IEC Type 2 No Damage protection to main, feeder, and branch circuits, for all types of loads. Yet, they require only half the mounting space needed for 600VAC Class RK fuses. Their versatile design allows you to reduce the number of fuses you need to stock, saving both space and money.

The time-delay characteristics of AJT fuses are ideal for handling typical motor and transformer inrush currents, while also providing superior current-limiting ability. By limiting high temperatures during fault conditions, they improve safety for both personnel and equipment. Mersen Class J fuses offer a reliable solution for demanding industrial applications where efficiency, protection, and cost savings matter.

AJT Fuses

  • AJT1N fuse front view with part specifications on manufacturer label.

    AJT1N – Mersen – Fuse Class ‘J’ 1 Amp 600 Volt

    $9.99

    Part Number: AJT1N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 1 Amp 600 Volt

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    44 in stock

  • AJT2-1/2N Front view with manufacturer's label in English

    AJT2-1/2N – Mersen – Fuse Class ‘J’ 2-1/2 Amp 600 Volt

    $12.99

    Part Number: AJT2-1/2N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 2-1/2 Amp 600 Volt

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    30 in stock

  • AJT2-1/4N Front view with manufacturer's label in English

    AJT2-1/4N – Mersen – Fuse Class ‘J’ 2-1/4 Amp 600 Volt

    $11.99

    Part Number: AJT2-1/4N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 2-1/4 Amp 600 Volt

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    30 in stock

  • Front view of fuse AJT 2-8/10 showing manufacturer information in English

    AJT2-8/10N – Mersen – Fuse Class ‘J’ 2-8/10 Amp 600 Volt

    $11.99

    Part Number: AJT2-8/10N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 2-8/10 Amp 600 Volt

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    30 in stock

  • ajt20 Front view with manufacturer's label in English

    AJT20 – Mersen – Fuse Class ‘J’ 20 Amp 600 Volt

    $9.99

    Part Number: AJT20

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 20 Amp 600 Volt

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    54 in stock

  • AJT200 Front view with manufacturer's label in English

    AJT200 – Mersen – Fuse Class ‘J’ 200 Amp 600 Volt

    $69.99

    Part Number: AJT200

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 200 Amp 600 Volt

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    16 in stock

  • fuse AJT200N, with orange and white label, shown in English

    AJT200N – Mersen – Non-Indicating, Fuse Class ‘J’ 200 Amp 600 Volt

    $69.99

    Part Number: AJT200N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 200 Amp 600 Volt Non-Indicating

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    15 in stock

  • AJT225 FUSE

    AJT225 – Mersen – Fuse Class ‘J’ 225 Amp 600 Volt

    $129.99

    Part Number: AJT225

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 225 Amp 600 Volt

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    10 in stock

  • AJT25 fuse

    AJT25 – Mersen – Fuse Class ‘J’ 25 Amp 600 Volt

    $9.99

    Part Number: AJT25

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 25 Amp 600 Volt

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    49 in stock

  • AJT 250 fuse

    AJT250 – Mersen – Fuse Class ‘J’ 250 Amp 600 Volt

    $129.99

    Part Number: AJT250

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 250 Amp 600 Volt

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    6 in stock

  • AJT2N fuse

    AJT2N – Mersen – Fuse Class ‘J’ 2 Amp 600 Volt

    $9.99

    Part Number: AJT2N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 2 Amp 600 Volt

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    50 in stock

  • AJT3-1/2N Front view with manufacturer's label in English

    AJT3-1/2N – Mersen – Fuse Class ‘J’ 3-1/2 Amp 600 Volt

    $11.99

    Part Number: AJT3-1/2N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 3-1/2 Amp 600 Volt

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    30 in stock