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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

  • AJT500 Front view with manufacturer's label in English

    AJT500 – Mersen – Fuse Class ‘J’ 500 Amp 600 Volt

    $185.99

    Part Number: AJT500

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 500 Amp 600 Volt

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    10 in stock

  • AJT5N Front view with manufacturer's label in English

    AJT5N – Mersen – Fuse Class ‘J’ 5 Amp 600 Volt

    $11.99

    Part Number: AJT5N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 5 Amp 600 Volt

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    67 in stock

  • AJT6-1/4N Front view with manufacturer's label in English

    AJT6-1/4N – Mersen – Fuse Class ‘J’ 6-1/4 Amp 600 Volt

    $11.99

    Part Number: AJT6-1/4N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 6-1/4 Amp 600 Volt

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    30 in stock

  • AJT60 Front view with manufacturer's label in English

    AJT60 – Mersen – Fuse Class ‘J’ 60 Amp 600 Volt

    $18.99

    Part Number: AJT60

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 60 Amp 600 Volt

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    103 in stock

  • AJT600 Front view with manufacturer's label in English

    AJT600 – Mersen – Fuse Class ‘J’ 600 Amp 600 Volt

    $199.99

    Part Number: AJT600

    Manufacturer: Mersen

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

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    10 in stock

  • AJT6N Front view with manufacturer's label in English

    AJT6N – Mersen – Fuse Class ‘J’ 6 Amp 600 Volt

    $11.99

    Part Number: AJT6N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 6 Amp 600 Volt

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    30 in stock

  • AJT70 amp fuse, front view with manufacturers label in English

    AJT70 – Mersen – Fuse Class ‘J’ 70 Amp 600 Volt

    $44.99

    Part Number: AJT70

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 70 Amp 600 Volt

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    6 in stock

  • AJT7N Front view with manufacturer's label in English

    AJT7N – Mersen – Fuse Class ‘J’ 7 Amp 600 Volt

    $9.99

    Part Number: AJT7N

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 7 Amp 600 Volt

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    30 in stock

  • AJT8 Front view with manufacturer's label in English

    AJT8 – Mersen – Fuse Class ‘J’ 8 Amp 600 Volt

    $11.99

    Part Number: AJT8

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 8 Amp 600 Volt

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    41 in stock

  • Front view of AJT80 fuse

    AJT80 – Mersen – Fuse Class ‘J’ 80 Amp 600 Volt

    $40.99

    Part Number: AJT80

    Manufacturer: Mersen

    Description: Fuse Class ‘J’,  80 Amp 600 Volt

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    10 in stock

  • AJT9 Front view with manufacturer's label in English

    AJT9 – Mersen – Fuse Class ‘J’ 9 Amp 600 Volt

    $11.99

    Part Number: AJT9

    Manufacturer: Mersen

    Description: Fuse Class ‘J’, 9 Amp 600 Volt

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    50 in stock