Bussmann KTK-R Limitron Class CC Current-Limiting Fast Acting Fuse
Professional Current Protection for Specialized Circuits & Industrial Control
The Bussmann KTK-R Limitron delivers reliable current-limiting protection with fast acting response for specialized circuits and industrial control applications. This Class CC fuse features a 0.10A amperage rating with 600V voltage capability and 200 kAIC interrupt rating, housed in a durable melamine tube construction with ferrule end connections for secure installation.
Professional Features & Benefits
- 0.10A Amperage Rating: Provides precise overcurrent protection for sensitive low-current circuits and control systems.
- Class CC Design: Ensures proper rejection style compatibility and prevents incorrect fuse substitution in critical applications.
- Current-Limiting Fast Acting: Delivers rapid fault clearing to minimize equipment damage and system downtime.
- 600V Voltage Rating: Supports a wide range of industrial and commercial electrical systems with reliable voltage handling.
- 200 kAIC Interrupt Rating: Provides exceptional fault current interruption capability for demanding electrical environments.
- Melamine Tube Construction: Offers superior durability and thermal performance for long-term reliability in industrial applications.
- Ferrule End Connections: Ensures secure, reliable electrical connections with proper contact integrity.
Technical Specifications
- Amperage Rating: 0.10A
- Application: Specialized circuits and industrial control
- Class: Class CC
- Connection: Ferrule end X ferrule end
- Department: Electrical
- Fuse Indicator: Non Indicating
- Height: .001 IN
- Interrupt Rating: 200 kAIC
- Material Type: Melamine tube
- Packaging Type: Standard
- Product Details: Current-limiting, fast acting
- Product Diameter: .40625 IN
- Product Group: Fuses
- Product Length: .001 IN
- Product Subgroup: Fast Acting Fuses
- Product Type: Current-limiting, fast acting
- Special Features: Rejection Style
- Voltage Rating: 600V
- Weight: .15 LB
- Width: .001 IN
Professional Applications
- Industrial Control Panels
- Motor Control Centers
- Specialized Electronic Circuits
- Process Control Systems
- Instrumentation Protection
- Low-Current Circuit Protection
- Commercial Equipment Protection
Why Choose Bussmann Quality?
Bussmann delivers proven reliability through precision engineering and robust melamine tube construction. With 200 kAIC interrupt rating and rejection style design, this Class CC fuse provides the professional-grade protection and compatibility assurance required for critical industrial and commercial applications.
Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 0.10A
- 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-1/10 – Frequently Asked Questions
1) Will a Bussmann KTK-R-1/10 fit a standard Class CC fuse holder?
Yes. The KTK-R-1/10 is a Class CC rejection style fuse with ferrule ends, so it drops into any Class CC holder or fuse block built for the rejection profile. The body measures .40625 inch in diameter, the standard 13/32 inch Class CC ferrule size. It will not seat in a non-rejection midget holder, which is the point of the design: it keeps a lower-rated midget fuse from being substituted into a Class CC circuit.
2) Is a 1/10 amp fuse really enough for a control circuit?
At 0.10A, the KTK-R-1/10 is one of the smallest ratings in the Limitron Class CC line and is meant for low-current work: instrumentation, process control, sensitive electronic circuits, and control panel branches drawing well under a tenth of an amp continuous. If you are protecting a control transformer primary or a contactor coil pulling more than that, size up within the KTK-R family rather than forcing this one, or it will open on normal load.
3) Can I use the KTK-R Limitron on a 480V or 600V industrial panel?
Yes. The KTK-R-1/10 carries a 600V rating, so it is good for 120V, 208V, 240V, 277V and 480V circuits as well as 600V systems. Its 200 kAIC interrupting rating covers service points with high available fault current, which is where a lower-rated midget fuse would fail the available-fault-current check.
4) Fast acting or time delay for this circuit?
The KTK-R Limitron is fast acting and current-limiting, not time delay. Use it where there is no inrush to ride through: electronic loads, instrumentation, control wiring, and feeders where you want the fault cleared as quickly as possible. For a motor branch or transformer primary with a magnetizing inrush, a fast acting fuse at the running-load rating will nuisance open, and you want a Class CC time delay fuse instead.
5) What is the exact part number and body material on the Bussmann 1/10 amp Class CC fuse?
The part number is KTK-R-1/10, from Bussmann's KTK-R Limitron series. The body is a melamine tube with ferrule ends, which holds up to the heat and mechanical handling of industrial panel service better than a glass tube.
6) Why does a current-limiting fuse matter for my equipment short circuit current rating?
Current limiting means the KTK-R clears a bolted fault inside the first half cycle and holds the let-through energy well below what the fault would otherwise deliver, which is how downstream components stay inside their withstand ratings. Combined with the 200 kAIC interrupting rating, it is the type of fuse used where the panel's available fault current is high. If your drawing calls out a Class CC current-limiting fuse, this satisfies that call at 0.10A and 600V.
7) Does the KTK-R-1/10 have a blown fuse indicator?
No. It is a non-indicating fuse, so there is no pop-up pin or window to show it has opened. On a panel where downtime troubleshooting matters, plan on checking continuity with a meter, or use a holder with a blown-fuse indicating feature.
8) How does the KTK-R-1/10 ship, and is there anything else I need with it?
It ships in standard packaging as a single fuse per unit, at .15 lb. Nothing is included with it: the Class CC holder, fuse block, or disconnect is a separate purchase, and the rejection groove means the holder has to be Class CC rated rather than a plain midget clip.
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Does the Bussmann KTK-R-1/10 come with a warranty?
Absolutely. The Bussmann KTK-R-1/10 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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