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Cylindrical fuse, melamine body, metal end caps

Bussmann

Bussmann DFJ-6 J Class Fast-Acting Fuse 6A 600V AC

SKU CH-GWGB-DZ5GN

A fast-acting Class J fuse rated 6 A at 600 V AC and 450 V DC with a 200 kA interrupt rating at 600 V AC and 100 kA at 450 V DC.

  • Fast-acting protection clears faults quickly
  • 200 kA interrupt rating at 600 V AC handles high fault currents
  • 100 kA interrupt rating at 450 V DC suits DC circuits
  • Class J 6 A 600 V AC rating fits standard fuse blocks
  • Cylindrical melamine body 2-1/4 in by 13/16 in installs easily

J Class Fast-Acting Fuse

The Bussmann DFJ-6 is a Class J fuse rated at 6 amperes and 600 volts AC, designed for branch-circuit protection in industrial panels and generator systems. Its fast-acting characteristic clears short-circuit faults quickly to limit let-through energy and protect downstream equipment.

6 A 600 V AC Capacity

The fuse carries a continuous 6 A load and provides an interrupting rating of 200 kA at 600 V AC and 100 kA at 450 V DC, giving ample headroom for typical feeder and motor-circuit fault levels. It reaches its thermal limit at sustained currents above 6 A, so it cannot protect circuits that regularly exceed this rating.

Replaces Equivalent DFJ Series

This unit directly replaces Bussmann DFJ, Littelfuse LDFJ and Mersen HSJ fuses in CH30J, JM600, JP600, JT600 or JTN600 blocks, offering identical cylindrical dimensions and melamine body construction. The upgrade is worthwhile when existing fuses lack the 200 kA AC interrupt rating or when a non-indicating, single-element design is specified.

Highlights

  • Fast-acting protection clears faults quickly
  • 200 kA interrupt rating at 600 V AC handles high fault currents
  • 100 kA interrupt rating at 450 V DC suits DC circuits
  • Class J 6 A 600 V AC rating fits standard fuse blocks
  • Cylindrical melamine body 2-1/4 in by 13/16 in installs easily

Specifications

BrandEATON BUSSMANN

Questions about this item

Will this 6 A J Class fuse coordinate with the CH30J fuse blocks I already have installed?

Yes, the DFJ-6 is listed as compatible with CH30J, JM600, JP600, JT600 and JTN600 fuse block series, so it will fit your existing hardware.

How can I verify the fuse is operating correctly once it is in circuit?

Measure the voltage across the fuse with a multimeter; a reading near zero volts confirms the 6 A element is intact and carrying current as intended.

Does the package include any fuse blocks or indicator accessories, or must they be purchased separately?

The box contains only the cylindrical 2-1/4 in melamine-bodied fuse itself; compatible fuse blocks such as the CH30J series and any indicating accessories are sold separately.

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