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Last updated: February 2026
This directory lists 35 fuse manufacturers across the United States, from specialists in miniature surface mount fuses for consumer electronics to providers of robust high-voltage power fuses for industrial and utility applications.
Buyers in this space are often solving complex overcurrent protection challenges, needing components that not only open circuits reliably but also manage interrupting current safely and consistently. Key considerations include the precise time-current characteristics, the I²t value for energy management during transients, and ensuring the chosen fuse can withstand the system's maximum fault current without rupture or fire.
The range of fuse manufacturers includes those focused on standard off-the-shelf components, custom design houses for unique applications requiring specific form factors or pulsing capability, and suppliers specializing in regulatory-compliant fuses for specific verticals like automotive (AEC-Q200 certified) or medical devices. Their distinctions often lie in their core material science expertise, manufacturing automation levels, and the breadth of their agency approvals.
To engage effectively with fuse manufacturers, buyers should arrive with clear specifications on nominal current, voltage rating (AC/DC), maximum fault current, desired time-current curve, and any specific environmental or mechanical requirements. Suppliers expect details on the application's operating conditions, including ambient temperature, vibration profiles, and expected surge currents, to recommend appropriate fuse types and derating factors.
A significant trend in the fuse manufacturing sector is the increasing demand for fuses capable of handling higher DC voltages and currents, driven by the rapid growth of electric vehicles (EVs), renewable energy systems, and high-density data centers. This pushes manufacturers to innovate in arc suppression techniques and develop new material compositions to manage thermal stresses more effectively within increasingly compact designs.
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35 companies nationwide
Based in San Diego, CA, AEM, Inc. is the sole QPL listed manufacturer of solid body, current limiting fuses using thick film techniques for the aerospace industry. Their high-reliability fuses have been in orbit for over 30 years with zero reported failures. They also produce hi-rel ferrite chips and chip resistors.
Based in San Diego, CA, AEM Components specializes in manufacturing high-power surface mount fuses, including automotive-grade and SolidMatrix® chip fuses. The company provides a comprehensive range of fuse technologies, such as Thinfilm and PPTC resettable fuses, leveraging advanced manufacturing for reliable operation across diverse applications.
Bel Fuse specializes in delivering proven solutions for high-performance electronics markets, including medical-grade power. The company manufactures fuses engineered for demanding environments and rated to exacting safety and compliance standards. They offer direct replacement parts by cross-referencing competitor part numbers, highlighting their manufacturing capabilities.
Based in Bellingham, WA, Blue Sea Systems engineers and manufactures high-quality marine electrical components, including a comprehensive range of circuit protection products like fuses, fuse blocks, and fuse holders. The company designs its American-made products for safety, reliability, and performance in demanding marine environments.
Based in San Antonio, TX, Bourns, Inc. manufactures Multifuse® PPTC resettable fuses, providing reliable overcurrent protection for various applications. They offer surface-mount and leaded types, serving industries like automotive. The company focuses on engineering excellence to deliver innovative, trusted electronic solutions worldwide.
Based in Houston, Texas, DENCO Fuses, Inc. designs and manufactures high-quality medium and high voltage fuses. Specializing in circuit protection, the company produces a wide range of standard, discontinued, and specialty fuses. They cater to various industrial and commercial applications with their USA-made products.
Based in Bristol, VA, Line Power manufactures high voltage fuses engineered for essential overcurrent protection. These fuses are designed for robust electrical equipment used across diverse heavy industries. The company serves B2B clients in mining, tunneling, and various industrial operations, ensuring reliable power safety for critical applications.
Marathon Special Products, based in Bowling Green, OH, manufactures fused disconnect switches. These products are specifically designed for data centers, offering robust electrical protection and seamless integration into various electrical systems. They provide durable solutions for demanding industrial environments.
Meritek Electronics Corporation produces advanced circuit protection devices, including PTC Resettable Fuses, and other electronic components. They serve the electronics manufacturing industry, offering solutions for IoT, automotive, and industrial controls. Meritek supports ultra-small SMD to thru-hole packages and provides custom designs.
NOARK Electric manufactures power distribution products, including DIN Rail fuse holders and fuses, alongside circuit breakers, switchgear, and surge protective devices. Based in Addison, TX, the company provides low and medium voltage electrical components for commercial and industrial facilities, ensuring supply continuity and electrical safety.
Northrop Grumman operates the NAVSEA-owned Allegany Ballistics Laboratory (ABL) in Rocket Center, West Virginia, specializing in the production of fuzes. The company's operations at ABL contribute to its broader portfolio of advanced weapons and mission solutions, providing critical defense capabilities and technologies.
Based in El Cajon, CA, OptiFuse is a direct provider of fuses, offering a wide selection for automotive, electronic, and industrial applications. The company provides high-quality options to ensure system safety and reliable circuit protection.
PB Fasteners manufactures high-strength aerospace fasteners, offering a full line of fuse pins. The company leverages advanced metallurgical technology and design expertise to produce critical components for demanding aerospace applications. They provide specialized fastener solutions when standard options are insufficient.
S&C Electric Company manufactures SMD Power Fuses, designed for protecting transformers, capacitor banks, and cables in outdoor distribution substations up to 34.5 kV. They also produce electrical distribution equipment like reclosers, switchgear, and interrupters, aiming to improve grid reliability and safety.
Based in Reno, NV, Selco Products Company specializes in the manufacturing of a wide variety of thermal fuses. They provide solutions with unique specifications, serving industrial and commercial clients who require precise overcurrent and overtemperature protection for their products and systems.
SIBA FUSES LLC North America manufactures a comprehensive range of fuses, including semiconductor, medium, high voltage, miniature, and electronic types. With over 80 years of experience, the company produces DC rated fuses and UL Listed options for ESS and PV systems. These fuses protect transformers, motors, switchgear, and capacitor circuits.
Sicame North America specializes in manufacturing low voltage submersible fuses, providing reliable overcurrent protection for underground power distribution networks. The company offers innovative hardware and integrated systems designed to strengthen, protect, and evolve the electrical grid for utility professionals.
Based in Englewood, CO, Eaton Bussmann manufactures a wide variety of fuses and balance of systems products. They serve the solar, electrical, and electronics industries, providing critical components for power management and circuit protection. The company markets comprehensive solutions for diverse applications.
Based in Richmond, VA, Weidmuller manufactures industrial circuit protection devices, including fuses and DIN-rail mounted circuit breakers. They provide branch-rated, supplementary, and electronic circuit protection solutions for various industrial and commercial applications, ensuring system safety and reliability.
Based in Bellingham, WA, Egis Mobile Electric develops and manufactures quality electrical product solutions for modern vehicle and vessel applications. The company produces marine-rated battery fuses (MRBF) from 30A to 300A, featuring high interrupt current protection. They also offer multi-position battery terminal mount fuse blocks built for harsh environments.
L&R Group manufactures high-voltage outdoor protective devices, specifically Dropout Fuse Cutouts. These essential components protect transformers and lines from short circuits and overloads, while also managing on/off functions. They specialize in electrical protective equipment for demanding applications.
OOHMAGE manufactures fuses and fuse holders, offering reliable electrical protection solutions. The company serves residential, commercial, and industrial sectors, providing essential components for various applications. They focus on producing dependable products to safeguard electrical systems.
Grote Industries manufactures cost-effective miniature blade fuses designed for automotive, battery, and general DC applications. Based in Grapevine, TX, the company also offers versatile LED work lamps and provides around-the-clock coverage for its partners, ensuring reliable solutions for demanding equipment lighting needs.
Kaman Corporation specializes in the development and manufacture of fuzes and safing & arming devices. They provide fuzing manufacturing services tailored for demanding military and industrial applications. The company leverages its expertise to produce critical components for various operational requirements.
MacLean Power Systems, based in Fort Mill, SC, manufactures engineered components for overhead power distribution systems. Specializing in overcurrent protection, the company produces MPS cutouts designed for utility and industrial applications. Assembled in the USA, their products provide essential solutions for electrical infrastructure.
Based in Franksville, WI, Quick Cable Inc. is a domestic manufacturer of electrical connectors, cable assemblies, and a wide array of fuses. They provide power distribution products and accessories, serving OEMs, distributors, and retailers. Products are utilized across battery motive, standby power, and engine starting applications.
Sensience engineers and manufactures precision thermal fuses and advanced sensing technologies for overheating detection and protection. They provide highly engineered safety limits and control components, ensuring reliable system control in applications from appliances to HVAC and industrial systems. The company leverages over 80 years of experience.
Ultra Defense Corp manufactures M81 Fuse Igniters and a range of small, medium, and large caliber ammunition for the US Military and Law Enforcement. The company is a prime contractor for the US Army and SOCOM, focusing on military standard and precision munitions. UDC operates federally licensed facilities in the US.
Based in Austin, TX, Zebra Instruments manufactures or assembles rugged diagnostic tools and circuit protection products, including standard glass fuses, for the HVAC and Refrigeration Service Industry. All products are proudly made or assembled in the U.S.A. and shipped globally.
Based in Cary, NC, ABB Electrification U.S. manufactures current-limiting fuses, including its Hi-Tech brand. These advanced fuses provide superior electrical protection in compact, cost-efficient form factors. The company offers a comprehensive portfolio of electrification products and solutions for industrial and commercial applications across the United States.
ETSI-LLC, representing AEM, specializes in manufacturing solid body, current limiting fuses. These fuses are produced using a thick film technique and are QPL listed, primarily serving the aerospace industry for critical applications.
Based in Bolingbrook, IL, G&W Electric manufactures a range of electrical power distribution products. The company specializes in encapsulated current limiting fuses, utilizing rugged epoxy technology to deliver durable systems. They provide solutions for protecting electrical infrastructure.
L3Harris Technologies designs and manufactures fuzing and ordnance systems for critical defense applications. The company provides precision electronic components, subsystems, and integrated systems, serving the Department of Defense and international allies with advanced defense solutions. L3Harris also focuses on solid rocket motor capacity.
Mersen is a global expert in electrical power and advanced materials, serving high-tech industries. The company operates industrial sites and R&D centers globally, with a US presence in Bay City, MI. Mersen directly provides essential components for electrical power systems, making it a manufacturer of fuses for various technological applications.
Based in San Antonio, TX, Socomec is an independent electrical equipment engineering and manufacturing company specializing in low voltage energy performance. They produce innovative solutions, including FP ESS Fuses designed for high-voltage DC networks and energy storage systems, serving sectors like data centers, healthcare, and renewable energies.
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| Type | Best For | Typical MOQ |
|---|---|---|
| Standard Industrial Fuse Manufacturers | General purpose circuit protection, consumer electronics, moderate power applications requiring UL/IEC compliance. | 1,000 - 10,000 units |
| High-Reliability/Specialty Fuse Manufacturers | Automotive (EV/ADAS), medical devices, aerospace, high-voltage industrial, applications demanding AEC-Q200 or custom pulsing capability. | 100 - 1,000 units (for custom designs), 500+ (for standard parts) |
| Private Label/ODM Fuse Suppliers | Large OEMs needing branded or customized fuse solutions with established design libraries, often leveraging offshore production for cost efficiency. | 10,000 - 100,000+ units |
| Fuse Component Manufacturers (elements/housings) | Buyers who perform final assembly/testing in-house, require specific sub-components for proprietary fuse designs, or need raw materials for unique fuse construction. | Varies by component, often 5,000+ |
Beyond the nominal current rating, the interrupting current (also known as breaking capacity) is paramount. It specifies the maximum fault current a fuse can safely interrupt without rupture or hazard. Equally critical is the I²t value, which represents the total energy the fuse can withstand during a fault before opening. Incorrect interrupting current selection risks catastrophic failure, while an inappropriate I²t can lead to damage to downstream components during short-duration overloads or transients.
The choice between UL 248 and IEC 60127 largely depends on your target market. UL 248 is the standard for fuses used in North America, while IEC 60127 is the international standard, widely adopted in Europe and Asia. Many global manufacturers offer fuses compliant with both standards, but verifying specific compliance marks (UL Listed, VDE, CCC, etc.) on the fuse itself and its datasheet is crucial for market entry and regulatory approval. For export products, dual-rated fuses simplify global compliance.
Ambient temperature significantly impacts a fuse's effective current rating. Fuses are typically rated at 20°C or 25°C. As the operating temperature increases, a fuse's resistance also rises, causing it to blow at a lower current than its nominal rating. You must ask manufacturers for their derating curves or factors relative to ambient temperature and apply these to your design. Failing to account for temperature derating is a common cause of nuisance blowing and can force expensive redesigns.
Pulsing capability refers to a fuse's ability to withstand repetitive, short-duration current surges (pulses) without degradation or premature blowing. This is crucial for applications with inductive loads, motors, power supplies, or any circuit experiencing regular inrush currents. Manufacturers test fuses for their ability to endure a specified number of pulses of a given magnitude and duration. You should provide manufacturers with your expected pulse profile (amplitude, duration, repetition rate) to ensure the selected fuse won't prematurely fatigue or open.