Company Profile for Mersen

374 Merrimac Street
Newburyport, MA 01950

Product Data

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Part #: TRS1-1/4R
600V 1 1/4A 5x13/16 TD FUSE
Part #: A4BT400
L TD FUSE 600V 400A A4BT
Part #: K301033
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  • Smart eCat Mersen 2018 Catalog
    Smart eCat
    Mersen 2018 Catalog

    Flip pages, play videos right from the page, pull part number info into bid software or create lists, search catalogs by keyword or part number and more.


  • Mersen
    Mersen: Surge Protective Devices Codes and Requirements
    Mersen: Surge Protective Devices Codes and Requirements

    This new video outlines systems where SPDs are now required per the 2017 NEC. The video features a map detailing the states that have adopted the 2017 code. It also highlights areas where SPDs are now required, such as Emergency System Loads such like elevators and escalators; Critical Operations Data Systems; Industrial Safety Interlocks, and Fire Pump Controllers.

  • Mersen
    Mersen Minute: HP15FHM32 Series PV Fuse Holders
    Mersen Minute: HP15FHM32 Series PV Fuse Holders

    Mersen’s 1500 VDC HelioProtection fuse holders for 10/14x85mm gPV fuses introduce the next level of safety for Utility scale photovoltaic applications. The HP15FHM32 fuse holders are finger safe (IP20 ingress protection rated) and feature a rotating fuse carrier.


More Products

Mersen’s Class RK-1 Reducer Fuses

Mersen’s Bulk Pack PV Fuses

Mersen’s Surge Trap STMT Series

  • Mersen Launches New Electrical Power Website
    Mersen Launches New Electrical Power Website

    Designed with electrical professionals in mind. The bold new design features new product photography, in-depth product specifications, a dedicated custom products and solutions section, a robust product finder to help you find what you need fast, and a brand new markets and applications section with interactive schematics that link to the right products for each application.

Press Releases

  • New Training Module on Mersen Knowledge Center: "Photovoltaic Fuses in Solar Applications"

    JULY 2019 – Newburyport, MA – Mersen Knowledge Center – Electrical Power is Mersen Electrical Power North America’s official online self-registering E-learning portal for electrical distributors, engineers, and end users. Our newest training module, “Application Basics: Photovoltaic Fuses in Solar Applications- M307E," will help you learn about the main components of a typical photovoltaic installation, understand the different segmentations of solar market, and identify Mersen fuses and fuses holders designed for use in photovoltaic installations.

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