Littelfuse

Littelfuse JTD125 Class J Fuse – 125A – 600V Time-Delay Fuse

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SKU: JTD125 GTIN/UPC: 07945820226
$92.40
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The Littelfuse JTD125 is a 125 Amp Class J time-delay fuse designed to provide dependable overcurrent and short-circuit protection in industrial and commercial electrical systems. Part of the JTD series, this POWR-PRO® fuse features a time-delay characteristic that allows temporary inrush currents associated with motors, transformers, and other inductive loads to pass without nuisance opening. Its current-limiting design helps reduce fault energy and enhances protection for downstream equipment.

Electrical Rating

  • Current Rating: 125 Amps
  • Maximum AC Voltage: 600 VAC
  • Maximum DC Voltage: 500 VDC
  • Interrupting Rating:
    • 200 kA AC
    • 20 kA DC @ 500 VDC

Key Specifications

  • Manufacturer: Littelfuse
  • Catalog Number: JTD125
  • Series: JTD
  • Fuse Class: Class J
  • Construction Type: Knife-Blade
  • Fuse Type: Time-Delay (Slo-Blo)
  • Family: POWR-PRO® Fuse
  • Indicating: No

Protection Characteristics

  • Time-delay design accommodates temporary motor starting and transformer inrush currents
  • Provides reliable overload and short-circuit protection
  • Reduces nuisance fuse openings in inductive load applications
  • Current-limiting performance minimizes let-through energy during faults
  • High interrupting capacity for demanding industrial systems

Construction Features

  • Compact Class J fuse design
  • Knife-blade terminal construction
  • Non-indicating fuse configuration
  • Industrial-grade construction for dependable long-term performance
  • Designed for high-performance power distribution applications

Mounting & Compatibility

  • Mounting Method: Fuse Block / Holder
  • Compatible with standard Class J fuse holders and fuse blocks
  • Suitable for switchboards, panelboards, motor control centers, and industrial distribution equipment

Applications

  • Motor circuits
  • Industrial power distribution systems
  • Switchboards and panelboards
  • Motor control centers
  • Transformers and inductive loads
  • Branch and feeder circuit protection
  • Commercial and industrial electrical systems

Product Data

  • Manufacturer: Littelfuse
  • Catalog Number: JTD125
  • Product Type: Time-Delay Fuse
  • Series: JTD
  • Fuse Class: Class J
  • Family: POWR-PRO® Fuse
  • Type Fuses
  • Vendor Littelfuse
  • Brand Littelfuse

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You may return items within 30 days of delivery for a refund.

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