Bussmann Class CC Fuses & Fuse Blocks
More Protection in Less Panel Space.
When space inside an electrical panel is limited, every component matters. Eaton’s Bussmann series Class CC fuse blocks provide a compact and flexible way to incorporate branch-circuit overcurrent protection into industrial control panels, machinery and other electrical equipment.
Designed for Class CC fuses up to 30 amps, these fuse blocks combine a small footprint with flexible mounting and configuration options — helping panel builders make better use of available enclosure space.
Compact by Design
Class CC fuses measure approximately 1.5 inches long by 0.41 inches in diameter, making them the smallest package among UL branch-circuit fuse classes.
Despite their compact size, Bussmann series Class CC fuses are rated up to 600 Vac and offer a 200 kA interrupting rating.
For control panels where available DIN rail and enclosure space can quickly become limited, that combination of size and protection can be a significant advantage.
A Modular Fuse Block
Bussmann Class CC fuse blocks are available in 1-, 2- and 3-pole configurations.
Their modular snap-together design allows individual poles to be assembled without tools, giving panel builders flexibility to create the configuration required for the application while potentially reducing the number of different fuse blocks that need to be stocked.
The same fuse block can also be DIN-rail or panel mounted, making it adaptable to different panel designs.
Additional Safety Options
Optional see-through covers are available for Bussmann Class CC fuse blocks. These covers provide IP20 finger-safe protection while allowing the fuse to remain visible.
Available cover features also include lockout/tagout capability and open-circuit indication, helping provide additional functionality for maintenance and troubleshooting.
Universal marker labels can also be used to simplify circuit identification within the panel.
Class CC Rejection Helps Prevent Misapplication:
An important feature of the Class CC system is its rejection design.
When Class CC fuses are used with the appropriate Class CC fuse block, the rejection feature helps prevent a lower-rated supplemental fuse from being installed in its place.
This provides an additional level of protection against fuse misapplication during installation or future maintenance.
Three Bussmann Class CC Fuse Options:
Eaton offers three primary Bussmann series Class CC fuse families for different applications:
- Low-Peak™ LP-CC – Time-delay, current-limiting fuses designed for applications such as small motors, relays and other circuits where both current limitation and the ability to accommodate normal temporary inrush are important.
- Limitron™ FNQ-R – Time-delay Class CC fuses particularly suited to control transformers and similar industrial control applications.
- Limitron™ KTK-R – Fast-acting Class CC fuses for applications requiring fast-acting protection, including certain control, lighting and other specialized circuits.
All three provide Class CC branch-circuit protection in the same compact fuse format.
Small Component. Big Role in Panel Design.
As electrical control panels become more sophisticated, designers are often being asked to fit more equipment into limited enclosure space.
The Bussmann series Class CC fuse and fuse block system provides panel builders with a compact branch-circuit protection solution while offering flexible mounting, modular configurations and a high interrupting rating.
For panel builders, OEMs, machine builders and electrical contractors, Class CC can be worth considering when both panel space and circuit protection matter.
CH Modular, IP20 finger-safe DIN-Rail holders for Class CC, supplemental and PV fuses Data Sheet >
Looking for Bussmann series Class CC fuses, fuse blocks or help selecting the right circuit protection solution for your application? Contact us for more information.
