Press Release

Mersen Launches Non-Indicating Class J-TD Fuse series

Latest addition to the Class J Time Delay Fuse product offering

NEWBURYPORT, MA (MARCH  2019) - Global Electrical Power and Advanced Materials leader Mersen is pleased to announce the launch of the Non-Indicating Class J Time Delay Fuse series. With this introduction the Class J Time Delay fuse series now offers a full range of ampere ratings between 8-600A in both indicating and non-indicating categories. The non-indicating class J offers same reliability and performance as the globally popular Mersen Class J Time Delay fuse with SmartSpot® indication to customers and applications not requiring similar fuses with indication. Mersen’s new non-indicating Class J Time Delay fuse series satisfies the National Electrical Code® requirements for use in Class I Division 2 hazardous locations.

Susan Benson, VP Product Management says, “There is a huge market potential for the non-indicating Class J products. We are excited to be able to offer our customers both
non-indicating and indicating categories that complete the portfolio and bring in product
and price parity within market offerings.”

Another key benefit of the Mersen Non-Indicating Class J Time Delay Fuse series is that they possess the same size, mounting terminals, and ratings as the Mersen SmartSpot Class J Fuses.

The UL/CSA Listed Mersen Non-Indicating Class J Time Delay Fuse series is readily identifiable by suffixing the letter “N” to the Catalog Number of the equivalent Mersen SmartSpot Class J Time Delay Fuse and is available immediately.

For more information about the Mersen Non-Indicating Class J-TD Fuse product offering, please visit the AJT product page. For more information about Mersen Electrical Power, visit

Global expert in electrical power and advanced materials, Mersen designs innovative solutions to address its clients' specific needs to enable them to optimize their manufacturing process in sectors such as energy, transportation, electronics, chemical, pharmaceutical and process industries. Mersen Electrical Power 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 protective devices, high power switches, heat sinks, laminated bus bars, and more. For more information, call
978-462-6662 or visit
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