Top 7 North American Fiberglass Fuse Manufacturers -2025

In the North American electrical market, “North American Fiberglass Fuses” refers not to products made in the United States or Canada, but to fuses designed according to UL and CSA standards, typically constructed with a fiberglass-reinforced tube housing. These fuses comply with UL 248 and CSA C22.2 requirements, offering high interrupt ratings, stable time-delay characteristics, and strong mechanical endurance.

The fiberglass body provides superior heat resistance and arc containment compared with glass or ceramic fuses, making them ideal for industrial, Electric Vehicle, energy storage, and renewable energy applications.

1. HIITIO

• Founded: 2018
• Headquarters: Zhejiang, China
• Website: https://www.hiitio.com
• Core Products: North American fiberglass fuses, HV DC contactors, semiconductor protection
• Fuse Link: North American Fiberglass Fuse Series

HIITIO is a fast-growing manufacturer and supplier of electrical protection components that serves as a full-spectrum partner for power electronics and high-voltage DC systems. With modern production facilities, strict quality certifications (ISO9001, IATF16949, ISO14001, ISO45001), and a global customer base, HIITIO focuses on innovation, customization, and fast delivery for OEMs and industrial distributors worldwide.

HIITIO’s North American Fiberglass Fuse line complies with UL/CSA-style standards and features fiberglass-tube housings with sand filling for high arc-quenching capability. HIITIO is a trusted alternative to legacy North American brands for customers seeking certified performance and value.

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2. Littelfuse

• Founded: 1927
• Headquarters: Chicago, Illinois, USA
• Website: https://www.littelfuse.com
• Core Products: Fuses, sensors, and overcurrent protection
• Fuse Link: Fuse Product Page

Littelfuse is a global leader in circuit protection, power control, and sensing technologies. The company serves automotive, industrial, and electronic markets, offering broad product lines, extensive technical support, and worldwide distribution. Littelfuse offers a wide range of cylindrical and cartridge fuses, including fiberglass time-delay types for motor protection and industrial control. Its UL-listed products are recognized for consistent quality, long-term reliability, and easy replacement compatibility.

3. Eaton

• Founded: 1911
• Headquarters: Dublin, Ireland (Global HQ) / Cleveland, USA (NA HQ)
• Website: https://www.eaton.com
• Core Products: Industrial fuses, breakers, and circuit protection
• Fuse Link: Bussmann Series Fuses

Eaton’s Bussmann division is one of the most respected names in the fuse industry. With decades of engineering expertise and global support networks, Eaton provides safe, high-performance protection for industrial, commercial, and utility systems.Bussmann fuses feature fiberglass-reinforced bodies and are UL-listed under multiple classes such as CC, RK, and J. Known for high interrupting ratings and clear part interchangeability, Bussmann fuses are widely used in switchgear, motor control centers, and renewable power systems.

4. Mersen

• Founded: 1892
• Headquarters: Paris, France / Newburyport, MA, USA
• Website: https://ep-us.mersen.com
• Core Products: Semiconductor fuses, DC fuses, surge protection
• Fuse Link: Fuse Range Overview

Mersen, formerly Ferraz Shawmut, specializes in electrical power and advanced materials for demanding industrial and renewable applications. The company’s North American operations deliver high-performance fuse solutions for power conversion and semiconductor protection. Mersen offers semiconductor fuses, cylindrical time-delay fiberglass fuses, and high-current cartridge fuses. Known for precision engineering and robust thermal performance, Mersen fuses are widely adopted in solar, ESS, and inverter systems.

5. Bel Fuse

• Founded: 1949
• Headquarters: Jersey City, New Jersey, USA
• Website: https://www.belfuse.com/
• Core Products: Board-level fuses, power converters, circuit protection
• Fuse Link: Circuit Protection Solutions

Bel Fuse, headquartered in New Jersey, produces power, protection, and connectivity components for electronics and telecom markets. Its diversified portfolio includes fuses and circuit protection modules integrated into power systems. Bel’s fuse products include board-level and cartridge-style fuses meeting North American standards. Their integration of circuit protection with power delivery makes Bel a preferred partner for compact and efficient designs.

6. SIBA Fuses

• Founded: 1946
• Headquarters: Lünen, Germany / Elgin, Illinois, USA
• Website: https://www.siballc.net
• Core Products: Industrial and semiconductor fuses
• Fuse Link: Industrial Fuses

SIBA is a German-origin fuse manufacturer with established North American distribution. Known for precision and reliability, SIBA provides high-voltage DC and semiconductor fuses meeting stringent UL/CSA standards. SIBA’s fiberglass-tube industrial and semiconductor fuses are optimized for high short-circuit capability and rapid clearing. Their fuses are widely used in renewable energy and traction systems.

7. S&C Electric Company

• Founded: 1911
• Headquarters: Chicago, Illinois, USA
• Website: https://www.sandc.com/en/
• Core Products: Line fuses, protection switches, reclosers

Headquartered in Chicago, S&C Electric is a leading manufacturer of grid and distribution protection devices. The company serves utilities and large-scale infrastructure projects requiring robust fuse-based circuit protection. S&C’s dropout and line fuses offer high reliability in harsh outdoor environments. They are designed to minimize arc energy and enhance service continuity for electrical networks.

HIITIO – Your Reliable Partner for North American Fiberglass Fuses

Designed to meet UL/CSA-style standards, HIITIO fuses combine fiberglass-tube durability, high interrupt ratings, and precise time-delay control. Whether you need cylindrical fuses for motor protection, high-interrupting types for inverters, or customized labeling for industrial systems, HIITIO delivers production-grade solutions with technical support, fast sampling, and cross-reference assistance. Looking for reliable North American fiberglass fuses with certified quality and fast delivery? Contact HIITIO today to get customized fuse protection solutions for your industrial or renewable energy projects.