Mersen Launches Non-Indicating Class RK1 Fuse Series

EIN Mersen RK1 Fuse Series

April 12, 2022

Mersen announced non-indicating versions of its popular A2D and A6D Series Class RK1 fuses. With this introduction, the Class RK1 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 RK1 offers same reliability and performance as the globally popular Mersen Class RK1 Time Delay fuse with SmartSpot® indication to customers and applications not requiring similar fuses with indication. Mersen’s new non-indicating Class RK1 Time Delay fuse series satisfies National Electrical Code® requirements for use in Class I Division 2 hazardous locations.

Another key benefit of the Mersen Non-Indicating Class RK1 Time Delay Fuse series is that they possess the same size, mounting terminals, and ratings as the Mersen SmartSpot Class RK1 Fuses.

Susan Benson, VP Product Management says, “By adding non-indicating models to our family of Class RK1 fuses, Mersen expands the options available to customers. We are excited to be able to offer our customers both non-indicating and indicating categories that complete our RK1 portfolio.”

The UL/CSA Listed Mersen Non-Indicating Class RK1 Time Delay Fuse series is readily identifiable by suffixing the letter “N” to the Catalog Number of the equivalent Mersen SmartSpot Class RK1 Time Delay Fuse. (The part numbers of fuses sized 1/10-7A, already available without indication, will not change.) The new non-indicating A2D and A6D Class RK1 fuses are available immediately.

For more information about the Mersen Non-Indicating Class RK1-TD Fuse product offering, visit the A2D product page and the A6D product page.

Go HERE for more information

Related Articles


Latest Articles

  • Celebrating 30 Years of Innovation and Collaboration at EFC’s 2025 Conference in Niagara

    Celebrating 30 Years of Innovation and Collaboration at EFC’s 2025 Conference in Niagara

    By Luc Rodier, Chair of the Board of Electro-Federation Canada (EFC) The 2025 EFC Conference in Niagara was a landmark occasion—marking 30 years of innovation, collaboration, and collective progress in the Canadian electrical industry. Set against the symbolic backdrop of the Canadian-U.S. border, this year’s theme, Electrifying Connections, couldn’t have been more fitting. As President and… Read More…

  • Industrial Wiring Devices: A Brief Intro and How to Choose Them

    Industrial Wiring Devices: A Brief Intro and How to Choose Them

    June 9, 2025 Introduction: With the multitude of options on the market, it can be difficult to decide whether you need a pin and sleeve wiring device or a plug and connector in your industrial plant or facility. You might find your head swirling with thoughts about which option is best. Or you may not… Read More…

  • Industry Leaders Head to Quebec to Strengthen Energy and Supply Chain Resilience

    Industry Leaders Head to Quebec to Strengthen Energy and Supply Chain Resilience

    June 9, 2025 By Electro-Federation Canada On June 3 and 4, a high-level delegation from Canada’s electrical and automation sector travelled to Montreal and Quebec City for a series of strategic meetings with Quebec government officials and key stakeholders. Organized by Electro-Federation Canada (EFC), this mission underscores the critical role the industry plays in advancing… Read More…

  • Electrifying Connections: A Celebration of Legacy, A Vision for the Future

    Electrifying Connections: A Celebration of Legacy, A Vision for the Future

    June 9, 2025 By Electro-Federation Canada This year’s Annual Industry Conference, held against the breathtaking backdrop of Niagara Falls, Ontario, was a landmark event with more than 710 Electro-Federation Canada community members. More than just a celebration of our shared history, it was a launchpad for new ideas, future-based dialogue, and deeper connections.   The energy and… Read More…


Changing Scene