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Mersen

Mersen LogoWith over 135 years of experience and a presence in 35 countries, Mersen is a global leader in electrical power and advanced materials for high-tech industries. Operating more than 50 industrial sites and 16 R&D centers, Mersen Electrical Power offers an extensive range of products for electrical protection and control, as well as solutions for power management applications. Collaborating with customers worldwide, Mersen designs and delivers customized solutions for key markets, including commercial, industrial, renewable energy, power electronics, and E-mobility. Mersen’s mission is to enhance the safety and reliability of customer applications.

Formerly known as Ferraz-Shawmut, Mersen is renowned for its innovative fuse technology, including the Amp-Trap® current-limiting fuse, Amp-Trap 2000® time-delay fuses, and SmartSpot® open-fuse indicator technology. Mersen continues to lead in electrical protection, serving sectors such as energy, transportation, electronics, chemicals, pharmaceuticals, and process industries.

Mersen’s advanced manufacturing expertise includes power transfer for rail vehicles, electronic systems for energy management, wire management, high-temperature solutions, anticorrosion and process equipment, electrical solutions for motors and generators, surge protection, low-voltage disconnect switches, high-power switches and contactors, cooling of power electronics, bus bars, and more.

Some of the Mersen products offered include:

  • Surge protection
  • Lightning protection
  • Power monitoring
  • Bus bars
  • Fuses and fuse systems
  • Low-voltage switches
  • Heat sinks
  • Wiring management
  • Engineered solutions

Mersen Fuses

Mersen products prevent the destruction of industrial and commercial electrical equipment, ensure an uninterrupted power supply, and help to stabilize the electrical network.

UL/CSA Low voltage general purpose fuses and fusegear

Mersen offers a comprehensive line of north american (ul and csa) fuses, fusegear, and fuse systems.

Providing the widest range of circuit protection products in the industry means that Mersen offers solutions for everyone from OEMs and panel builders to MROs and electrical contractors.

midget fuses mersen

Midget fuse links

Mersen offers the broadest selection of Supplemental and Midget fuses in both time-delay and fast-acting. Mersen's international range of midget dimension fuses offers you all the protection you require, all within a small footprint.

bladed fuses mersen

Blades fuse links

Mersen’s bladed fuses cover a complete range of applications and a complete range of electrical protection needs.

ferrule fuses mersen

Ferrule fuse links

Mersen’s ferrule fuses are engineered for overcurrent protection and meet the most popular protection priorities.

fusegear Mersen

Fusegear

Mersen offers a comprehensive line of North American (UL and CSA) fusegear.

EPC distribution block

Distribution blocks

Mersen power distribution blocks provide a safe and easy method of splicing cables, splitting primary power into secondary circuits and fulfilling requirements for fixed junction tap-off points.

miniature fa sa fuses mersen

Miniature fa sa fuses and fusegear

Mersen provides a comprehensive line of current-limiting fuses (low voltage, general purpose, medium voltage, semiconductor, miniature and glass, and special purpose) and accessories, fuse blocks and holders, power distribution blocks, low voltage disconnect switches. 

miniature ul CSA fuses mersen

Miniature ul/csa fuses and fusegear

Mersen miniature fuses provide maximum protection in minimum space.

helio fuse mersen

PV fuses and fusegear

Mersen HelioProtection® PV products have been tested and certified to the latest industry standards for use in photovoltaic applications and guarantee the level of performance required by the PV industry.

low voltage switches mersen

Low voltage disconnect switches

Mersen’s global range of low voltage disconnect switches encompasses both UL and IEC standard products for AC and DC applications. Full line of accessories accommodates virtually any application.