Bussmann

Bussmann by Eaton: A Century of Circuit Protection Leadership

Few names carry as much weight in electrical circuit protection as Bussmann. Bussmann, now operating as a division of Eaton, traces its roots to St. Louis, Missouri, where the Bussmann brothers began crafting fuses from the ground up — eventually supplying protection for horseless carriages and World War II aircraft alike. Today, that legacy spans more than 30,000 products and a global manufacturing footprint, making Bussmann one of the most trusted names in the industry.

Acquired by Eaton, a multinational power management company with nearly a century of innovation behind it, the Bussmann series has only grown in breadth and engineering depth. Eaton's mission to deliver intelligent power management solutions pairs naturally with Bussmann's long-standing focus on electrical safety and reliability. The result is a product portfolio that serves automotive, marine, RV, commercial, industrial, and alternative energy markets with equal confidence.

Automotive & Marine Electrical Protection You Can Rely On

At the heart of the Bussmann lineup are its Fuses — the first line of defense against damaging overcurrent conditions in any vehicle or vessel. From compact blade-style ATM and ATC fuses to high-amp cartridge and fusible link designs, Bussmann fuses are engineered to meet both OEM specifications and demanding aftermarket performance requirements.

Protecting those fuses and keeping them accessible is just as important as the fuses themselves. Bussmann's range of Fuse Holders — including inline blade holders, modular designs, and DIN rail-mount options — ensures secure, low-resistance connections in everything from daily drivers to off-highway equipment. For those who need to be prepared for unexpected blown fuses on the road or water, Bussmann also offers convenient Fuse Kits that bundle a practical assortment of amperage ratings into a single, organized package.

When a resettable solution is preferred over a one-time fuse, Bussmann's Circuit Breakers deliver. Designed to match the footprint of standard ATM and ATC fuses, these ultra-compact breakers come in Type I (automatic reset), Type II, and Type III configurations, and are built to handle the voltage and current demands of trucks, RVs, ATVs, agricultural machinery, and more.

For multi-battery applications — common in RVs, marine vessels, and commercial vehicles — Bussmann's Battery Isolators provide a solid-state solution to a persistent problem: auxiliary battery drain. Acting as an electrical check valve, these isolators allow accessories to draw from a secondary battery without ever compromising the starting power of the main battery.

Why Choose Bussmann?

• Nearly 100 years of circuit protection expertise and continuous innovation
• Products engineered for automotive, marine, RV, commercial, and industrial environments
• Backed by Eaton's global resources, engineering support, and power management technology
• OEM-matched designs for straightforward replacement and compatibility
• A broad catalog covering everything from miniature blade fuses to heavy-duty battery management

Whether you're replacing a blown fuse on a weekend project vehicle or building out a complex multi-battery electrical system for a marine application, Bussmann has the circuit protection products — and the century of know-how — to get the job done right.