Bussmann KAX Series Semiconduc...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$160.29
Bussmann KAX Series Semiconductor Fuse

Bussmann KAX Series Semiconductor Fuse

(No reviews yet) Write a Review

Model: KAX-1

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

$160.29
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 KAX-1 Eaton Series Semiconductor Fuse, 1A

The Bussmann KAX-1 is an Eaton Bussmann series KAX semiconductor fuse rated at 1 A, engineered to deliver fast-acting, current-limiting overcurrent protection for sensitive power semiconductor devices such as SCRs, thyristors, diodes, and other solid-state components used in industrial power conversion equipment. Compact dimensions of 2 in in height by .56 in in width by .56 in in depth allow this fuse to fit tightly spaced fuse blocks, fuse holders, and power electronic assemblies where board and panel space is at a premium. As part of the widely specified Bussmann KAX series, the KAX-1 is built to help protect costly semiconductor components from short-circuit and overload damage while supporting reliable, code-compliant performance in demanding industrial power circuits.

Key Features

  • Amperage Rating: 1 A precise current rating engineered for accurate, repeatable protection of low-current semiconductor circuits without nuisance opening.
  • KAX Series Construction: part of the Bussmann KAX semiconductor fuse series, purpose-built to safeguard SCRs, thyristors, and other solid-state power devices from damaging fault currents.
  • Compact Footprint: measures 2 in in height, .56 in in width, and .56 in in depth, making it well suited to compact fuse blocks, holders, and space-constrained control panels.
  • Lightweight Design: weighs just .47 lb, simplifying handling, stocking, and installation for maintenance and panel-build teams.
  • Fast-Acting Protection: semiconductor-class fuse construction is designed to open quickly under fault conditions, helping limit let-through energy to downstream power electronics.
  • Eaton Engineering: manufactured under the Eaton Bussmann brand, a name long trusted for circuit protection components across industrial and commercial power systems.

Technical Specifications

  • Amperage Rating: 1 A
  • Compliances: Contact factory
  • Product Height: 2 in
  • Product Length Depth: .56 in
  • Product Weight: .47 lb
  • Product Width: .56 in

Typical Applications

  • Power Electronics and Variable Frequency Drive Systems
  • SCR and Thyristor Circuit Protection
  • Rectifier and Inverter Assemblies
  • Industrial Motor Control Panels
  • UPS and Power Conversion Equipment
  • Renovation and New Industrial Construction Projects

Why Bussmann?

Bussmann by Eaton is a globally recognized name in circuit protection, and the KAX series semiconductor fuse line reflects that engineering heritage. Built to protect sensitive power semiconductor components from damaging overcurrent conditions, the compact, lightweight KAX-1 delivers the dependable, code-compliant performance that professional electricians, panel builders, and industrial maintenance teams rely on when specifying protection for critical power circuits. Choosing the Bussmann KAX-1 means standardizing on a semiconductor fuse platform engineered specifically for the demands of modern power electronics.

Manufacturer Resources

Spec Sheet

Product Specs

Department:
Electrical
Product Subgroup:
Fuses
Product Group:
Circuit Protection
Product Type:
Semiconductor Fuse
Product Weight:
0.47 lb
Product Height:
2 in
Product Width:
0.56 in
Product Length:
0.56 in

Bussmann KAX-1 – Frequently Asked Questions

1) What amp ratings does the Bussmann KAX semiconductor fuse come in?
Two ratings in the KAX series: KAX-1/2 at 0.5 A and KAX-1 at 1 A. Both are low-current semiconductor fuses, so pick the one that matches the device current you are protecting rather than sizing up for headroom. Oversizing a semiconductor fuse defeats the point, since the fuse is there to clear faster than the SCR or diode can fail.
2) Will a Bussmann KAX-1 fuse fit my existing fuse block or holder?
The KAX-1 measures 2 in high by .56 in wide by .56 in deep, so it suits compact fuse blocks, holders and tightly packed power electronic assemblies. Measure the clip spacing and body clearance in your block against those numbers before ordering; a holder cut for a longer or larger-diameter body will not grip it correctly.
3) Can I use a standard branch-circuit fuse instead of a KAX semiconductor fuse on a drive or rectifier?
No. The KAX is a fast-acting, current-limiting semiconductor-class fuse built to open quickly and hold down let-through energy to SCRs, thyristors and diodes. A conventional branch-circuit or time-delay fuse clears far too slowly to save a solid-state device, and it will protect the wiring while the semiconductor is already gone. Use semiconductor-class protection on the device side and leave the branch fuse for the feeder.
4) Is the Bussmann KAX-1 or KAX-1/2 the right fuse for protecting an SCR gate or low-current control circuit?
Yes, that is what the series is for. Both the 0.5 A and 1 A ratings are aimed at low-current semiconductor circuits, with the rating chosen to give repeatable protection without nuisance opening. For anything carrying more than 1 A continuous you need a higher-rated semiconductor fuse, since the KAX line tops out at 1 A here.
5) How do I order the right Bussmann KAX fuse by part number?
Order by amperage: KAX-1/2 is the half-amp, KAX-1 is the one-amp. The number after the dash is the amp rating, so the catalogue designation is all a distributor needs to pull the correct piece.
6) What equipment is the Bussmann KAX series fuse actually used in?
Typical placements are variable frequency drives and other power electronics, SCR and thyristor control circuits, rectifier and inverter assemblies, industrial motor control panels, and UPS and power conversion gear. Panel builders also spec it on new industrial construction and retrofit work where the drawing calls for semiconductor protection.
How fast can I get the Bussmann KAX-1 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 KAX-1 come with a warranty?
Absolutely. The Bussmann KAX-1 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 KAX-1?
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 KAX-1 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.
!