When it comes to electrical safety and system protection, Mersen is a name trusted by professionals across industries. Their latest innovation, the Class J Fused Switch, is no exception. This new product delivers the high-performance protection of a fused disconnect switch in an ultra-compact footprint, helping facility managers, OEMs, and panel builders simplify their systems while supporting safety, flexibility, or code compliance.
At Agilix Solutions, we’re always on the lookout for technology that helps our customers design smarter, safer, and more space-efficient systems. Mersen’s Class J Fused Switch is an innovative solution that aligns perfectly with those goals.
What is the Class J Fused Switch?
Mersen’s new Class J Fused Switch is a UL 98-listed switch designed for use with UL Class J fuses. With an SCCR rating of 200kA and available in 30A and 60A models, it combines the protection benefits of Class J fuses with the safety, code compliance, and ease of installation you’d expect from a traditional fused disconnect switch.
What sets this product apart is its small footprint and modular design. Measuring up to 50% smaller than traditional solutions, the Class J Fused Switch is ideal for today’s compact panel designs, especially in OEM and commercial and industrial building applications where space is at a premium.
Mersen designed this product line to be modular and scalable, meaning customers can easily integrate it into both new and existing systems. Available in 1-, 2-, or 3-pole configurations, with or without fuse monitoring, the switch supports a wide range of applications and offers a variety of valuable optional accessories.
Designed With Safety & Simplicity in Mind
At its core, the Class J Fused Switch is about protecting both people and equipment. It enables a visible means of disconnect, which is a key safety requirement under the NEC (National Electrical Code) for many applications. Whether it’s a motor disconnect, HVAC unit, or piece of industrial equipment, operators need the assurance that they can fully de-energize the system before performing maintenance.
But Mersen didn’t stop at safety. They engineered this switch to deliver on simplicity as well.
Here are just a few of the features that stand out:
- Finger-safe fuse covers to protect operators and maintenance crews from accidental contact.
- Lockout/tagout capability that meets OSHA requirements and supports safe service conditions.
- DIN rail mountable design for fast, tool-free installation.
- Universal mounting options to fit into a variety of enclosure layouts.
Combined, these features reduce install time, increase safety, and simplify overall system design.
Class J Fused Switches are Built for Modern Applications
The Class J Fused Switch was engineered with today’s electrical needs in mind. As systems become more complex and demands for energy efficiency grow, traditional solutions can fall short, particularly in tight spaces.
This switch is a direct response to those challenges. Its compact size makes it especially attractive for:
- OEMs and panel builders, who often face tight dimensional constraints.
- Commercial building installations, where clean, space-saving electrical layouts are prioritized.
- Industrial equipment upgrades, where adding safety disconnects without major panel redesigns can save time and money.
Mersen’s Class J Fused Switch is fully compatible with Class J time-delay fuses, which provide superior current limitation and can reduce arc energy during faults, another big win for personnel safety and equipment longevity.
Agilix Solutions: Your Local Mersen Product Pros
If you’re looking for a fused disconnect switch that saves space, enhances safety, and simplifies installation, give the Mersen Class J Fused Switch the chance to earn a spot on your spec sheet. Reach out to your Account Manager, or call your local Agilix Solutions branch to leverage Mersen’s latest ingenuity and Agilix’s unparalleled service for yourself.