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Bussmann FMM-30 30 Amp Micro Female Time Delay Fuse

Manufacturer

Bussmann

<h3>Bussmann by Eaton: A Century of Circuit Protection Leadership</h3><p>Few names carry as much weight in electrical circuit protection as <strong>Bussmann</strong>. <a href="/1987-bussmann">Bussmann</a>, 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.</p><p>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.</p><h3>Automotive &amp; Marine Electrical Protection You Can Rely On</h3><p>At the heart of the Bussmann lineup are its <a href="/1987-bussmann-fuse-2676">Fuses</a> — 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.</p><p>Protecting those fuses and keeping them accessible is just as important as the fuses themselves. Bussmann's range of <a href="/1987-bussmann-fuse-holder-2688">Fuse Holders</a> — 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 <a href="/1987-bussmann-fuse-kit-10140">Fuse Kits</a> that bundle a practical assortment of amperage ratings into a single, organized package.</p><p>When a resettable solution is preferred over a one-time fuse, Bussmann's <a href="/1987-bussmann-circuit-breaker-2504">Circuit Breakers</a> 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.</p><p>For multi-battery applications — common in RVs, marine vessels, and commercial vehicles — Bussmann's <a href="/23501-battery-isolator-bussmann-1987">Battery Isolators</a> 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.</p><h3>Why Choose Bussmann?</h3><ul style="list-style:disc"><li>Nearly 100 years of circuit protection expertise and continuous innovation</li><li>Products engineered for automotive, marine, RV, commercial, and industrial environments</li><li>Backed by Eaton's global resources, engineering support, and power management technology</li><li>OEM-matched designs for straightforward replacement and compatibility</li><li>A broad catalog covering everything from miniature blade fuses to heavy-duty battery management</li></ul><p>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.</p>

Part Number

FMM-30
09/17/2036 12:09 AM
Sale Price

$5.19

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Bussmann FMM-30 is a 30-amp micro female time delay fuse designed for automotive and marine electrical system protection. This compact fuse features time delay characteristics that allow it to handle temporary current surges without blowing, while still providing reliable overcurrent protection for sensitive electrical circuits.

Key Features:

  • 30-amp current rating for medium-duty circuit protection
  • Micro female fuse design for space-constrained applications
  • Time delay (slow-blow) operation prevents nuisance blowing during motor startup and other surge conditions
  • Complies with automotive fuse standards for reliable performance
  • Compact footprint ideal for modern vehicle fuse panels and distribution blocks

Time delay fuses are specifically engineered for circuits with inductive loads such as motors, pumps, and transformers that draw higher current during startup. The FMM series micro female format is commonly found in late-model automotive, marine, and RV electrical systems. Each fuse is color-coded for easy amp rating identification during installation and troubleshooting.

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