Bussmann KTK LIMITRON Fast-Act...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$104.21
Bussmann KTK LIMITRON Fast-Acting Fuse, Non-Indicating, 600V

Bussmann KTK LIMITRON Fast-Acting Fuse, Non-Indicating, 600V

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Model: KTK-12

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

$104.21
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Bussmann KTK LIMITRON Fast-Acting Fuse, Non-Indicating, 600V

The Bussmann KTK LIMITRON Fast-Acting Fuse from Eaton Bussmann is a fast-acting, non-indicating fuse engineered for control circuits, lighting circuit protection, and meter circuits. Rated 600V with a 100 kAIC interrupt rating, this KTK series fuse uses ferrule end x ferrule end terminals for compatibility with standard fuse holders and fuse blocks. It is built with nickel-plated bronze endcaps and a melamine tube body for durable, reliable performance. It is available in seven amp ratings from 9A to 50A, including 9A, 12A, 25A, 35A, 40A, 45A, and 50A, so you can match protection to the exact load of the circuit you are protecting.

Key Features

  • Amp Rating Range: Available in 9A, 12A, 25A, 35A, 40A, 45A, and 50A ratings to cover a wide span of control, lighting, and meter circuit loads.
  • Interrupt Rating: 100 kAIC at 600V delivers high fault-current interrupting capability for demanding electrical systems.
  • Fast-Acting Response: LIMITRON fast-acting fuse design responds quickly to overcurrent conditions in control circuits, lighting circuits, and meter circuits.
  • Terminal Style: Ferrule end x ferrule end configuration for straightforward installation in compatible fuse holders and fuse blocks.
  • Durable Construction: Nickel-plated bronze endcaps resist corrosion, while the melamine tube body provides a rugged, insulating fuse casing.
  • Non-Indicating Design: Standard non-indicating body for applications that do not require blown-fuse indication.
  • Voltage Rating: 600V rating suited to a broad range of commercial and industrial control and lighting circuits.

Technical Specifications

  • Product Width: .41 in
  • Voltage Rating: 600V
  • Packaging Type: Standard

Typical Applications

  • Control Circuit Protection
  • Lighting Circuit Protection
  • Meter Circuit Protection
  • Commercial and Industrial Electrical Systems
  • Fuse Panels and Fuse Block Installations
  • Renovation and New Construction Electrical Work

Why Bussmann?

Eaton Bussmann is a trusted name in circuit protection, and the KTK LIMITRON series reflects that with nickel-plated bronze endcaps, a melamine tube body, and a 100 kAIC interrupt rating at 600V. With ferrule end x ferrule end terminals and a fast-acting, non-indicating design, the KTK LIMITRON fuse is built for dependable, code-compliant protection of control, lighting, and meter circuits across commercial and industrial electrical installations. Choose the amp rating that matches your load, from 9A up to 50A, for consistent, professional-grade circuit protection.

Manufacturer Resources

Product Specs

Connection:
Ferrule end x ferrule end
Product Width:
.41 in
Fuse Indicator:
Non-indicating
Voltage Rating:
600V
Packaging Type:
Standard
Department:
Electrical
Product Type:
Fuse
Connection Type:
Ferrule End
Series:
KTK
Product Finish:
Nickel-Plated Bronze
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann KTK-12 – Frequently Asked Questions

1) What amp ratings does the Bussmann KTK LIMITRON fuse come in?
The KTK LIMITRON is ordered by amp rating, and the catalog covers 1, 2, 3, 5, 8, 9, 10, 12, 20, 25, 30, 35, 40, 45 and 50 amps. The part number follows the rating directly, so a 20 amp is KTK-20 and a 50 amp is KTK-50. Pick the rating to the circuit load you are protecting, not to the holder size.
2) Will a KTK fuse fit a standard fuse block or holder?
It uses ferrule end x ferrule end terminals, the same cylindrical cartridge style standard clip-type fuse holders and blocks accept. There are no blade or bolt-on tabs, so the holder must be a clip or ferrule-style unit. Body width is listed at .41 in.
3) Is the KTK fast-acting or time-delay, and will it hold a motor inrush?
Fast-acting. The LIMITRON KTK clears quickly on overcurrent, which suits control circuits, lighting and meter circuits where there is little or no inrush. For a motor or transformer load that draws a heavy starting surge, a fast-acting fuse will nuisance-open; you want a time-delay class of fuse for that instead.
4) What is the interrupting rating on the Bussmann KTK, and is it enough for a high fault-current panel?
100 kAIC at 600V. That covers service-entrance and industrial locations where available fault current is high, which is the usual reason a spec calls out a current-limiting LIMITRON rather than a general-purpose fuse.
5) Can I use a 600V KTK fuse on a 120V or 240V control circuit?
Yes. The KTK is rated 600V, and a fuse may be applied at or below its voltage rating, so it is fine on 120V, 240V or 480V control, lighting and meter circuits. What you cannot do is run it above 600V.
6) Does the KTK fuse show you when it has blown?
No. It is a non-indicating fuse, so there is no pop-up pin or indicator light in the body. Troubleshooting means pulling the fuse and testing continuity, or using a holder with its own blown-fuse indication.
7) Will the KTK fuse hold up in a damp or corrosive panel?
Endcaps are nickel-plated bronze, which resists corrosion at the clip contact surface, and the body is a melamine tube that serves as the insulating casing. That combination is why the KTK is common in industrial panels rather than clean office gear.
8) How do I order KTK fuses for a facility, and do they come in bulk packs?
Ordering is by amp rating only, and packaging is listed as standard, so you are buying the fuse itself rather than a multi-pack assortment. For MRO stocking, the practical approach is to carry the ratings your panels actually use, for example KTK-10, KTK-20 and KTK-30, since the part number is just KTK plus the amperage.
How fast can I get the Bussmann KTK-12 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 KTK-12 come with a warranty?
Absolutely. The Bussmann KTK-12 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 KTK-12?
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 KTK-12 from ZenSupply?
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