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Manufacturers - Mersen

Fuses, surge protection, switching & cooling of power electronics and laminated bus bar. Mersen, formerly Ferraz Shawmut, is a worldwide expert in high-performance materials for extreme environments as well as in the reliability and safety of electrical installations.

Drawing on a century of experience-and an ongoing commitment to critical research in electrical safety - Mersen provides industrial, commercial, and OEM customers with innovative products and unsurpassed technical support. The electrical and circuit protection division 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, surge protection, high power switches, heatsinks, thermal management, and more.

Amp-Trap®High-Speed Class J (HSJ) fuses, TPMOV®Technology, and the SmartSpot®open-fuse indicator are a few of the company's latest innovations. Markets include energy, transportation, chemical and pharmaceutical, electrical, process industries and more.

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Product Lines:

Bus Bars

Bus Bars

Eldre is now part of the Mersen family. With this addition, Mersen adds laminated bus bars to its extensive portfolio of products, creating a powerful bundled product offering for the protection of power electronics.

View Product Line on Mersen Website
Cooling of Power Electronics

Cooling of Power Electronics

Comprehensive range of heatsinks, thermal management, and cooling solutions to help cool your power electronics applications.

  • Air Cooled Heatsinks
  • Liquid Cooled Heatsinks
  • Phase Change Heat Pipe Assemblies
  • Cooling Systems

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DC Protection for Electric Vehicles and Battery Applications

DC Protection for Electric Vehicles and Battery Applications

Mersen's new Xp and Xs Series hybrid devices and their expanded line of DC fuses provide complete coverage of the whole DC protection spectrum from low to high fault currents, resettable or not, low to virtually no power loss and high duty-cycle compliant over the entire voltage and current DC range.

  • Hybrid protection
  • Battery fuses

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Fuses, Fusegear, and Fuse Systems

Fuses, Fusegear, and Fuse Systems

Mersen offers a range of solutions in medium and low voltage for enhancing, protecting, and making energy distribution safer and more reliable.

  • Low voltage IEC
  • Low voltage
  • UL/CSA
  • High voltage IEC
  • Medium voltage IEEE
  • Semiconductor protection
  • Miniature
  • Special purpose
  • Fuse holders, bases and supports
  • IEC fuse switch disconnectors
  • Fuse rails
  • Accessories for fuses and fuse systems

View Product Line on Mersen Website
High-Power Switches and Contactors

High-Power Switches and Contactors

  • High Current DC
  • High Voltage AC

View Product Line on Mersen Website
Low-Voltage Switches

Low-Voltage Switches

  • UL/CSA switches
  • IEC switches
  • Accessories

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Power Transfer for Rail Vehicles

Power Transfer for Rail Vehicles

Integrating protection components and power interconnection solutions for function and performance. Serving rail train set designers, engineering services and transit authorities.

  • Current collecting devices
  • Air- and liquid-cooled heatsinks
  • Surge protectors
  • Power semiconductor fuses
  • Bus bars
  • AC & DC fuses and holders

View Product Line on Mersen Website
Surge Protection

Surge Protection

Surge-Trap® SPDs are designed to UL1449 4th Edition standards and feature Mersen's industry leading patented TPMOV® technology inside.

  • NEMA
  • DIN-Rail
  • In-Line
  • SPD Components

View Product Line on Mersen Website
Wiring Management

Wiring Management

Power distribution blocks:

  • FSPDB Series UL 1059 Finger-Safe Power Distribution Blocks
  • MPDB Series UL 1953 Open-Style Power Distribution Blocks

View Product Line on Mersen Website