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Cylindrical cartridge fuse with metal end caps

Littelfuse

Littelfuse JTD060 60 A 600 VAC Class J Time Delay fuse

SKU CH-X4RF-PR1F9

60 A time-delay Class J fuse rated 600 VAC with a 200000 A interrupting capacity

  • 60 A rating protects high-current circuits reliably
  • 600 VAC voltage rating suits industrial power systems
  • 200000 A interrupting rating handles severe fault currents safely
  • Time-delay dual-element design tolerates motor start-up surges
  • Stone sand and quartz filler quenches arcs quickly

Industrial Circuit Protection

The Littelfuse JTD060 is a 60 Amp Class J time-delay fuse rated for 600 VAC circuits. It suits maintenance teams and electricians protecting motor starters, transformers and general industrial loads where brief inrush currents occur.

Time Delay Dual Element

The dual-element construction absorbs temporary overloads without opening, reducing nuisance trips during equipment start-up. A 200000 Amp AC RMS symmetrical interrupting rating ensures safe fault clearance on high-capacity supply systems.

Verify Voltage And Holder

Confirm the circuit voltage does not exceed 600 VAC and that the existing fuse block accepts a Class J cartridge. The cartridge measures 1 1/16 inch diameter by 2 3/8 inch length, so check holder dimensions before ordering.

Highlights

  • 60 A rating protects high-current circuits reliably
  • 600 VAC voltage rating suits industrial power systems
  • 200000 A interrupting rating handles severe fault currents safely
  • Time-delay dual-element design tolerates motor start-up surges
  • Stone sand and quartz filler quenches arcs quickly

Specifications

BrandLittelfuse

Questions about this item

When will the 60 A time-delay fuse need replacement?

The fuse operates until a sustained overcurrent melts the dual-element link; it is a single-use device with no scheduled maintenance interval.

What limit appears first during continuous operation at full load?

The 60 A rating is the continuous current limit; exceeding it triggers the time-delay characteristic before the 200000 A interrupting rating becomes relevant.

How much heat does the cartridge generate when running all day at 60 A?

Normal operation at rated current produces typical resistive heating for a stone-sand-filled cartridge; no active cooling is required.

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