Fuses and fuse holders

Bussmann's Class CC fuses set the standard in Class CC fuse performance in the industry. Recognized for their superior performance, Bussmann has the right product for your circuit and equipment protection needs. These branch circuit rated, 600v, 200,000a IR fuses offer exceptional protection in the smallest package of any UL class of fuses. Choose from the ultimate protection provided by our Low Peak LP-CC fuses, the time delay of our FNQ-R's for your control transformer and similar control applications or the fast acting protection of our KTK-R Limitron fuses for specialized circuits such as lighting protection.

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LP-CC data sheet no. 1023 FNQ-R data sheet no. 1014

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Overview Models Resources Support

Core features

Time delay coupled with Class CC current-limiting response provides close sizing on small motor and relay circuits, and maximum component short-circuit current rating protection
200kA interrupting rating provides high ratings for control circuit locations
Class CC rejection feature, with appropriate fuse block, prevents inserting lesser-rated supplementary fuses
Inventory consolidation of 13⁄32 x 1 1⁄2 inch supplementary fuses reduces SKU investment and minimizes potential for misapplying fuse
Selective coordination ratio of 2:1 (within Low-Peak fuse family) prevents electrical shutdowns from extending beyond the failed circuit

Benefits of Class CC fuses

Class CC rejection feature, with appropriate mounting, prevents inserting lesser-rated supplemental fuses

Find the right fuse for you

Low-Peak Upgrade Program

Fuseology

An introduction to understanding fuses and how they are applied for providing overcurrent protection.

Study of overcurrent circuit protection

Helpful Apps & Resources

Bussmann Resource Center

Fault Current Calculator

Specifications

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Certification reports

eaton-bussmann-eu-declaration-of-conformity-93-68-eec2000-us-en.pdf

(PDF 147 KB , 07/04/2025)

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Product notifications

FNQ-R, KTK-R Class CC Limitron Fuses

Product change notice on fuse labeling for FNQ-R and KTK-R fuses.

(PDF 82 KB , 01/07/2019)

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LP-CC Class CC Low-Peak fuse product change Notice

Product change notice on fuse labeling for the LP-CC Class CC fuses

(PDF 72 KB , 01/07/2019)

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Product specification guides

Bussmann series Class CC and Midget (10x38mm) Modular Ferrule Fuse Block Product Profile No. 10307

Features and benefits of the new Bussmann series modular ferrule fuse blocks that save assembly time, inventory and improve safety.

(PDF 481 KB , 03/07/2019)

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Bussmann series Low-Peak Fuse Product Profile No. 10119

Low-Peak fuses provide ultimate protection in the Fuses Made Simple program. Low-Peak fuses include Class CC, J, L and RK1 UL branch circuit fuses.

(PDF 368 KB , 01/07/2019)

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Technical data sheets

Bussmann series CH modular fuse holder data sheet no. 10430

Eaton’s Bussmann™ series CH DIN-Rail fuse holders are for UL Class CC and midget fuses, and IEC 10x38 fuses. They are available with and without indication in 1-, 2- and 3-pole IP20 finger-safe versions. A variety of accessories extends their application flexibility and they may be ganged together to meet specific application requirements.

(PDF 2 MB , 08/09/2021)

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Bussmann series Class CC and supplemental modular fuse blocks data sheet no. 10241

Specifications for BCM (Class CC) and BMM (supplemental 13/32 x 1-1/2” /10x38) modular style fuse blocks with optional covers.

(PDF 669 KB , 08/09/2021)

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Bussmann series Class CC and supplemental modular fuse blocks data sheet no. 10241

Specifications for BCM (Class CC) and BMM (supplemental 13/32 x 1-1/2” /10x38) modular style fuse blocks with optional covers.

(PDF 669 KB , 18/03/2025)

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Bussmann series FNQ-R Class CC Fuse Data Sheet No. 1014

Specifications and technical details on the Limitron FNQ-R time-delay Class CC fuses.

(PDF 765 KB , 01/07/2019)

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Bussmann series KTK-R Class CC fuse data sheet No. 1015

Specifications and technical details on the Limitron KTK-R fast-acting Class CC fuses.

(PDF 692 KB , 01/07/2019)

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Bussmann series Low-Peak LP-CC Class CC fuse data sheet no. 1023

Specifications and technical details on the Low-Peak Class CC LP-CC time-delay, current-limiting fuses.

(PDF 794 KB , 01/07/2019)

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Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.

Bussmann series Class CC Fuses

Core features

Benefits of Class CC fuses

Low-Peak Upgrade Program

Fuseology

Bussmann Resource Center

Fault Current Calculator

Filters

Try another search

Certification reports

Product notifications

Product specification guides

Technical data sheets

Related products

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