Bussmann Tron KAJ Series Recti...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$448.04
Bussmann Tron KAJ Series Rectifier Fuse, Non-Indicating, 600V

Bussmann Tron KAJ Series Rectifier Fuse, Non-Indicating, 600V

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Model: KAJ-30

In Stock (leaves warehouse same day if ordered before 3pm ET)

$448.04
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Bussmann Tron KAJ Rectifier Fuse, Non-Indicating, 600V

The Bussmann Tron KAJ rectifier fuse, part of the Eaton Bussmann series, is engineered to protect rectifier and power conversion circuits from damaging overcurrent conditions. Rated 600V and built in a Non-Indicating, Standard configuration, this Tron KAJ series fuse is available across a range of amp ratings — 30A, 40A, 45A, and 60A — to match the protection requirements of a wide range of rectifier applications. Its compact, space-saving body makes it a dependable choice for OEM equipment and industrial power electronics where consistent, code-compliant overcurrent protection is required.

Key Features

  • Amp Rating Range: Available in 30A, 40A, 45A, and 60A ratings to match the overcurrent protection needs of the connected rectifier circuit.
  • Voltage Rating: 600V rating supports use in higher-voltage rectifier and power conversion systems.
  • Non-Indicating Design: Standard Non-Indicating construction provides straightforward overcurrent protection without a blown-fuse indicator.
  • Standard Grade Construction: Built to Bussmann's Standard grade specification within the Tron KAJ series for consistent, reliable performance.
  • Eaton Bussmann Tron Series: Part of the Eaton Bussmann series Tron KAJ fuse family, purpose-built for rectifier circuit protection.
  • Compact Form Factor: Measures approximately .75" wide x .75" deep x 3" high and weighs just .12 lb, fitting easily into space-constrained enclosures and panels.

Technical Specifications

  • Product Length Depth: .75 in
  • Product Width: .75 in
  • Product Height: 3 in
  • Product Weight: .12 lb
  • Compliances: Contact factory

Typical Applications

  • Rectifier and Power Conversion Circuits
  • Industrial Electrical Panels and Equipment
  • OEM Power Electronics Protection
  • Commercial and Industrial Electrical Installations
  • Overcurrent Protection for DC Power Systems and Drives

Why Bussmann?

Eaton's Bussmann series is a trusted name in circuit protection, and the Tron KAJ rectifier fuse continues that standard with Standard-grade, Non-Indicating construction designed for dependable overcurrent protection. Available across 30A, 40A, 45A, and 60A ratings at 600V, the Tron KAJ series gives electrical professionals a reliable, code-compliant option for protecting rectifier and power conversion equipment in industrial and OEM applications where consistent performance and long service life matter most.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Length Depth:
.75 in
Product Weight:
.12 lb
Product Width:
.75 in
Compliances:
Contact factory
Product Height:
3 in
Product Type:
Semiconductor Fuse
Voltage Rating:
600V
Series:
Tron KAJ
Configuration:
Non-Indicating
Grade:
Standard
Product Group:
Circuit Protection
Product Subgroup:
Fuses
Product Length:
0.75 in

Bussmann KAJ-30 – Frequently Asked Questions

1) What amp ratings does the Bussmann Tron KAJ rectifier fuse come in?
The Tron KAJ is offered in four ratings: 30A (KAJ-30), 40A (KAJ-40), 45A (KAJ-45) and 60A (KAJ-60). All four share the same 600V rating and the same Non-Indicating body, so you pick the amp rating to match the rectifier circuit and nothing else changes about the part.
2) Does the Tron KAJ fuse have a blown-fuse indicator?
No. The KAJ is built in a Non-Indicating configuration, so there is no visual pop-up or indicator pin to tell you it has opened. If your maintenance crew relies on walking a panel and spotting a tripped fuse by eye, you will want an indicating style fuse or an external blown-fuse monitor instead.
3) Will a Tron KAJ fuse fit in a tight control panel or enclosure?
Body size is .75 in wide by .75 in deep by 3 in high, and the fuse weighs .12 lb. Measure your fuse block window against the 3 in length before committing, but at three quarters of an inch square it drops into most space-constrained panels and OEM enclosures without reworking the layout.
4) Can I use a 600V rectifier fuse like the Tron KAJ on a 480V industrial circuit?
Yes. A fuse voltage rating is a maximum, not a target, so the 600V KAJ is suitable on circuits at or below 600V, which covers standard 480V industrial distribution and the DC bus voltages typical of rectifier and drive sections. What you cannot do is run it above 600V.
5) What is a rectifier fuse used for, and is it the same as a general purpose branch circuit fuse?
A rectifier fuse such as the Tron KAJ is intended for semiconductor and power conversion duty: protecting rectifier bridges, DC power systems and drive front ends, plus the industrial panels and OEM power electronics they sit in. That is a different job from a general purpose branch circuit or motor fuse, which is sized around inrush and feeder protection rather than the let-through energy a diode or SCR can survive. Do not swap one for the other on a spec drawing without the equipment maker's blessing.
6) Which Bussmann Tron KAJ part number do I order for a 45 amp rectifier circuit?
KAJ-45 is the 45A version. The family runs KAJ-30, KAJ-40, KAJ-45 and KAJ-60, so the number after the dash is the amp rating, which makes reordering off a panel schedule straightforward.
How fast can I get the Bussmann KAJ-30 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann KAJ-30 come with a warranty?
Absolutely. The Bussmann KAJ-30 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann KAJ-30?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Bussmann KAJ-30 from ZenSupply?
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