Bussmann KAJ-50 Tron Series Re...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$359.00
Bussmann KAJ-50 Eaton series Tron KAJ rectifier fuse, 600V, Standard

Bussmann KAJ-50 Tron Series Rectifier Fuse, 600V, 50A

(No reviews yet) Write a Review

Model: KAJ-50
Selected Model is

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

$359.00
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Bussmann KAJ-50 Tron Series Rectifier Fuse, 600V, 50A

The Bussmann KAJ-50 is an Eaton Bussmann series Tron KAJ rectifier fuse engineered for reliable overcurrent protection in semiconductor and rectifier circuits. Rated 600V and 50A, this Standard fuse uses a non-indicating design for straightforward in-line protection where visual blown-fuse signaling is not required. Its compact, lightweight construction suits space-constrained panels and enclosures in industrial and commercial electrical systems, helping maintain dependable circuit protection across demanding power conversion and drive applications.

Key Features

  • Voltage Rating: 600V, suited to higher-voltage industrial and commercial rectifier circuits.
  • Amperage Rating: 50A, sized for semiconductor and rectifier overcurrent protection.
  • Series Design: Part of the Eaton Bussmann Tron KAJ series, purpose-built for rectifier fuse applications.
  • Fuse Indicator: Non-Indicating design for standard installations without blown-fuse visual signaling.
  • Compact Footprint: Approximately 3 in height and .75 in width and length depth, sized for tight panel and enclosure layouts.
  • Lightweight Build: Approximately .12 lb, simplifying handling, stocking, and installation.
  • Standard Configuration: Designated Standard within the Bussmann Tron KAJ lineup for consistent, code-compliant performance.
  • Application Focus: Purpose-built for protecting semiconductor devices and rectifier assemblies from damaging overcurrent conditions.

Technical Specifications

  • Amperage Rating: 50 A
  • Compliances: Contact factory
  • Fuse Indicator: Non Indicating
  • Product Height: 3 in
  • Product Length Depth: .75 in
  • Product Weight: .12 lb
  • Product Width: .75 in
  • Voltage Rating: 600 V

Typical Applications

  • Semiconductor and Rectifier Circuit Protection
  • Industrial Power Conversion Equipment
  • Commercial and Industrial Electrical Panels
  • Motor Drive and Power Supply Protection
  • Panelboard and Switchgear Overcurrent Protection
  • OEM Equipment Requiring 600V Rectifier Fuse Protection

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the Tron KAJ series rectifier fuse is built to deliver dependable overcurrent protection at 600V and 50A for demanding semiconductor and rectifier applications. Its Standard, non-indicating configuration provides straightforward, code-compliant protection for professional electrical installations, giving electricians and equipment builders a consistent, trustworthy component for critical power conversion circuits.

Manufacturer Resources

Product Specs

Amperage Rating:
50A
Compliances:
Contact factory
Fuse Indicator:
Non Indicating
Packaging Type:
Standard
Product Height:
3 in
Product Length Depth:
.75 in
Product Weight:
.12 lb
Product Width:
.75 in
Voltage Rating:
600V
Department:
Electrical
Product Type:
Semiconductor Fuse
Product Group:
Circuit Protection
Product Subgroup:
Fuses
Product Length:
0.75 in

Bussmann KAJ-50 – Frequently Asked Questions

1) What voltage and amp rating is the Bussmann KAJ-50 Tron fuse?
The KAJ-50 is rated 600 volts, 50 amps. That rating is a maximum on the voltage side, so it can be applied at 600V or below in a rectifier or semiconductor circuit, but the 50A element sizing has to match the device you are protecting, not just the circuit breaker ahead of it.
2) Does the Bussmann KAJ-50 have a blown fuse indicator?
No. The KAJ-50 is a non-indicating fuse, so there is no pop-up pin or visual flag to tell you it has opened. You will be testing continuity or relying on a separate microswitch or control circuit. If your maintenance routine depends on walking the panel and reading indicators, this is not the configuration you want.
3) Can I use a standard class fuse instead of a Tron rectifier fuse in a drive or power supply?
Not interchangeably. The Tron KAJ is a semiconductor (rectifier) fuse, built to clear fast enough to protect diodes, SCRs and rectifier stacks, where a general purpose branch circuit fuse is sized to protect conductors and will let a semiconductor fail first. If the equipment drawing calls for a semiconductor fuse, substitute only with another semiconductor fuse of the same voltage and amp rating.
4) Will a KAJ-50 fit in a tight control panel? What are its dimensions?
Dimensions are 3 in height with .75 in width and .75 in length/depth, and it weighs .12 lb. That footprint fits most panel and enclosure fuse block layouts, but check the mounting centers on your existing block or clips before swapping, since a semiconductor fuse has to seat fully for proper contact.
5) What is the exact part number to order for the 600V 50A Tron rectifier fuse?
Order by manufacturer part number KAJ-50, the Eaton Bussmann Tron KAJ series rectifier fuse at 600V, 50A, in standard packaging and non-indicating configuration. The amp rating is carried in the suffix, so a different amperage in the same family changes the trailing number.
6) What kind of equipment is the KAJ-50 normally installed in?
It goes into power conversion gear: rectifier assemblies, motor drives, DC power supplies, and the fuse blocks inside industrial panelboards and switchgear feeding those loads. OEM builders also use it where a 600V semiconductor fuse is called out on the bill of materials.
How fast can I get the Bussmann KAJ-50 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-50 come with a warranty?
Absolutely. The Bussmann KAJ-50 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-50?
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-50 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!