Bussmann KTK-R-1/2 Limitron Cl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$121.21
$66.40
Bussmann KTK-R-1/2 KTK-R Limitron

Bussmann KTK-R-1/2 Limitron Class CC Fast-Acting Fuse, 0.50A

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Model: KTK-R-1/2
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$66.40
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Bussmann KTK-R-1/2 Limitron Class CC Fast-Acting Fuse, 0.50A

The Bussmann KTK-R-1/2 Limitron is a Class CC current-limiting, fast-acting fuse rated 0.50A at 600V, engineered for specialized circuits and industrial control applications. Built with a melamine tube body and ferrule end X ferrule end connections, this rejection-style fuse delivers a 200 kAIC interrupt rating for dependable short-circuit protection. Its compact Class CC design fits standard Class CC rejection fuse holders, making it a reliable choice for control circuit protection where space and coordination matter.

Key Features

  • Amperage Rating: 0.50A for precise overcurrent protection in low-current control circuits.
  • Voltage Rating: 600V for use across a wide range of industrial control systems.
  • Class CC Rejection Style: Sized to fit Class CC rejection fuse holders and blocks for secure, code-compliant installation.
  • Melamine Tube Construction: Durable melamine tube body supports consistent current-limiting performance.
  • Ferrule End Connections: Ferrule end X ferrule end terminations for a secure fit in compatible fuse blocks.
  • 200 kAIC Interrupt Rating: High interrupting capacity helps clear fault current quickly and safely.
  • Non-Indicating Design: Standard non-indicating fuse body construction.

Technical Specifications

  • Amperage Rating: 0.50A
  • Application: Specialized circuits and industrial control
  • Class: Class CC
  • Connection: Ferrule end X ferrule end
  • Fuse Indicator: Non Indicating
  • Interrupt Rating: 200 kAIC
  • Material Type: Melamine tube
  • Packaging Type: Standard
  • Special Features: Rejection Style
  • Voltage Rating: 600V
  • Product Type: Current-limiting, fast acting
  • Product Length: .001 IN
  • Product Details: Current-limiting, fast acting
  • Product Diameter: .40625 IN
  • Product Height: .001 IN
  • Product Weight: .15 LB
  • Product Width: .001 IN

Typical Applications

  • Specialized Circuit Protection
  • Industrial Control Panels
  • Class CC Rejection-Style Fuse Holders
  • OEM and Machine Control Equipment

Why Bussmann?

Bussmann's KTK-R Limitron Class CC fuses combine a durable melamine tube body with ferrule end connections and a 200 kAIC interrupt rating, delivering current-limiting, fast-acting protection that professionals can count on. The rejection-style Class CC design helps ensure proper coordination in industrial control circuits, supporting safe, reliable performance in demanding applications.

Manufacturer Resources

Spec Sheet

Product Specs

Amperage Rating:
0.50A
Application:
Specialized circuits and industrial control
Class:
Class CC
Connection:
Ferrule end X ferrule end
Fuse Indicator:
Non Indicating
Interrupt Rating:
200 kAIC
Material Type:
Melamine tube
Packaging Type:
Standard
Special Features:
Rejection Style
Voltage Rating:
600V
Product Group:
Circuit Protection
Department:
Electrical
Product Subgroup:
Fuses
Product Type:
Fast-Acting Fuse
Product Length:
.001 IN
Product Details:
Current-limiting, fast acting
Product Diameter:
.40625 IN
Product Height:
.001 IN
Product Weight:
.15 LB
Product Width:
.001 IN

Bussmann KTK-R-1/2 – Frequently Asked Questions

1) Can I use a 1/2 amp KTK-R fuse on a 480V or 600V control transformer primary?
The KTK-R-1/2 is rated 600V, so it can be applied at 480V or 600V control circuit levels. It carries a 200 kAIC interrupting rating, which covers the available fault current on most industrial panels. At 0.50A it is sized for small control transformer primaries and low-current control loads.
2) Is a fast-acting Class CC fuse the right choice, or do I need time-delay for a motor circuit?
KTK-R is current-limiting and fast acting, which is what you want for protecting solid-state devices, control circuits, and non-inductive loads where you want the fault cleared quickly. It is not the choice where inrush is expected, such as a motor branch circuit or a transformer with high magnetizing inrush, because a fast-acting element at 0.50A will open on the surge. For those, specify a Class CC time-delay fuse instead.
3) Does this Bussmann fuse have a blown-fuse indicator?
No. The KTK-R-1/2 is a non-indicating fuse, so there is no visual pop-out or LED to show it has opened. In a panel where technicians need to spot an open fuse at a glance, use an indicating fuse holder or a holder with a blown-fuse indicator light rather than relying on the fuse body.
4) What is the fuse body made of on the KTK-R Limitron?
A melamine tube body. Melamine is used on Class CC fuses because it holds up to the arc energy during a current-limiting clearing event without rupturing, which is what lets the fuse carry a 200 kAIC interrupting rating.
How fast can I get the Bussmann KTK-R-1/2 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-R-1/2 come with a warranty?
Absolutely. The Bussmann KTK-R-1/2 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-R-1/2?
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
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