Mersen 700VAC Class J Time Delay AJT Fuses

February 11, 2022

Mersen is pleased to announce improvements to its AJT series of fuses (15-100 Amp models), enabling an increase in AC operating voltage from 600VAC to 700VAC. This has been done primarily to better accommodate power transmission networks at 585V or 600V, especially common in Northeast Canada and the Midwest US.

Mersen’s Class J AJT fuses are compact fuses that offer big protection. The most current-limiting UL-class fuse, Mersen’s AJT series provides optimal performance and saves valuable panel space. Their time-delay characteristic allows for use in a wide range of applications. AJT fuses are available in indicating and non-indicating versions.

Mersen is the only fuse manufacturer to offer Class J fuses with the 700VAC specification. The fuses have been UL self tested. There will be no change in part numbers or pricing. The new 700VAC specification will be available in 15-100A AJT fuses as of the manufacturing date of February 14, 2022.

For more information about Mersen AJT fuses, visit the AJT fuse web page

Related Articles

Latest Articles

Changing Scene

  • IDEAL Electrical Partners with Habitat for Humanity Greater Toronto Area to Support Affordable Housing Initiatives

    IDEAL Electrical Partners with Habitat for Humanity Greater Toronto Area to Support Affordable Housing Initiatives

    August 17, 2026 Earlier this month, approximately 30 IDEAL Electrical employees and skilled electricians volunteered alongside Habitat for Humanity Greater Toronto Area (GTA) to help construct Countryside, an affordable 15-unit townhome development in Brampton that will welcome families later this year. Volunteers assisted with electrical wiring and rough-in installation and provide general construction support, helping… Read More…

  • Hubbell Canada Forms Strategic Alliance with Mac’s II Agencies to Strengthen Harsh & Hazardous Market Presence in British Columbia

    Hubbell Canada Forms Strategic Alliance with Mac’s II Agencies to Strengthen Harsh & Hazardous Market Presence in British Columbia

    August 17, 2026 Hubbell Canada is pleased to announce a new strategic partnership with Mac’s II Agencies, effective August 1, 2026, to represent Hubbell Canada’s Harsh & Hazardous portfolio throughout British Columbia. This newly formed alliance further strengthens Hubbell Canada’s commitment to serving customers operating in some of the most demanding industrial environments, while supporting… Read More…

  • AEA Scholarships and Bursaries Apply by August 31st

    AEA Scholarships and Bursaries Apply by August 31st

    August 17, 2026 The Alberta Electrical Alliance is proud to support our industry with over $320,500 of postsecondary scholarships for current members and their children. Your participation in AEA events helps fund AEA scholarships and build our industry’s future. AEA Sponsored Scholarships Open to employees, dependents, and children of parents who are members of the… Read More…

  • Contractors’ Corner at the 2026 NETCO Conference

    Contractors’ Corner at the 2026 NETCO Conference

    August 17, 2026 ECAO and CECA look forward to joining industry leaders at the NETCO – National Electrical Trade Council 2026 Conference for an important conversation on AI and its growing role in electrical contracting. R. Graeme Aitken, Executive Director of ECAO, Terry Milot, President of the Canadian Electrical Contractors Association, and Témoc Vega, PhD,… Read More…