Mersen: Your Fuse and Circuit Protection Resource



What's New Mersen Announces New PIQ Quiz on Determining Short Circuit Current Mersen, formerly Ferraz Shawmut, announces that it recently published a new Protection Intelligence Quotient (PIQ) Quiz on determining short circuit current. MORE... More News Mersen Joins the SunSpec Alliance Mersen Publishes PE Bundling PIQ Mersen Publishes New Tech Topic on Significant Changes to NFPA 70E Standard 2012 Edition Save Time with Select-A-SPD® Online Mersen Messenger - January 2012 Mersen Completes Acquisition of Eldre TT-SPN1 Intro to Specifying Surge Protection New Brochure for Cooling of Power Electronics HelioProtection Photovoltaic Fuses	Safety & Reliability for Electrical Power We integrate our product expertise into your application to make it safe, reliable and profitable. Our product expertise includes: Overcurrent protection, surge protection, high power switching, cooling of power electronics, and power transfer for rail.	Product Spotlight HelioProtection Photovoltaic Fuses Introducing the industry’s first UL 2579 listed range of dedicated photovoltaic (PV) fuses, the HelioProtection fuse line, which includes the HP6M, HP10M, and HP6J. Learn more... SEARCH CENTER Catalog Search: (Part name or number) Competitor Part #: Site Search: Limit your search to:
Mersen is a global expert in materials and solutions for extreme environments as well as in the safety and reliability of electrical equipment. Product Data Fuses General Purpose Fuses UL Power Fuses Midget European IEC Plug Canadian Medium Voltage Fuses E-Rated R-Rated P.T. Fuses Accessories Capacitor Fuses Sure Guard ETP Series IEC Standard Back-Up fuses Special Purpose Fuses Photovoltaic Fuses Cable Protector Lift Truck Fuse Form 600 DC Fuses Telecommunications Welder Protection Semiconductor Fuses North American Round Style European Square Style European Cylindrical Style European DIN Fuses British Standard Miniature / Glass Fuses 1/4" X 1-1/4" 1/4" X 1" 5 X 20mm 4.5 X 14.5mm Automotive fuse Micro Subminiature UltraSafe™ Fuseholders Class CC & Midget (10x38mm) Fuse Holders 30A & 60A Class J Fuse Holders 14x51mm & 22x58mm Fuse Holders 27x60mm Fuse Holders Fuse Blocks & Holders UL Power Fuse Blocks Semiconductor Fuse Blocks Semiconductor Fuse Holders Class CC / Midget Fuse Holders IEC Fuse Holders Glass Fuse Blocks Glass Fuse Holder Micro/Plug-in fuse holders Accessories Power Distribution Blocks Finger-Safe Design (175-840A) Miniature Open Style (90-240A) Intermediate Open Style (155-460A) Large Open Style (170-2660A) Low Voltage Disconnect Switches Fusible Disconnect Switch Non-Fusible Disconnect Switch Enclosed Disconnect Switch Fusible Shunt Trip Surge Switch Manual Changeover Switch Manual By-Pass Changeover Switch Surge Protection Surge-Trap® SPD TPMOV® MOV Protection Fuses Surge Switch Power Transfer Power Transfer for Rail Vehicles High Power Switches DC Rated MV Changeover Disconnect Medium Voltage Electrolyic Cell Contactors Systems Laminated Bus Bar Cooling of Power Electronics Air Cooled Heatsinks Liquid Cooled Heatsinks Phase Change/Heatpipe Cooling Units Accessories Point of Sale Displays Fuse Pullers / Clip Clamps Fuse Reducers Blown Fuse Indicators Box Covers Units Engineered Product Application Information Basic Fuse Information Motor Sizing Transformer Sizing General Sizing Surge Protection Basic Switch Information Derating Information Short Circuit Information Catalog Search Cross-Reference Search Cooling of Power Electronics Electrical Contractors Electrical Distributors Facility Managers and MROs OEMs Power Electronics Solar Power Specifying Engineers Surge Protection Engineering Services Training & Seminars Arc Flash Info Center™ Fuse Control™ High Power Test Lab Resources & Tools Articles & White Papers Arc Flash Info Center™ Articles & White Papers CAD Files High-Power Test Lab Literature PIQ Quiz New Quiz Archived Quizzes R-Tools Heatsink Modeling UL508A SCCR Guides Select-A-Fuse^® Select-A-SPD^® Seminars Technical Services Training Modules Job Openings New Products News Releases Events Keep Me Informed Seminars PIQ Quiz New Quiz Archived Quizzes UL, CSA, CE and Other Certifications Environmental policy Restriction of Hazardous Substances (RoHS) Directive ISO 9001 Quality Standards ISO 14001 Environmental Standards Quality and Environmental Manuals Privacy Policy

Safety & Reliability for Electrical Power