Littelfuse Launches DC Disconnect Switch Product Line

November 11, 2020

Littelfuse, Inc. recently announced the introduction of its DC Disconnect Switch product line. The Littelfuse LS6 (available in 1000 and 500 V) and the LS6R (available in 1500 V) series are energy-efficient, compact disconnect switches that quickly break or resume the flow of current safely. Offered in both 250 and 400 amperage ratings, these switches prevent shock hazards when isolating circuits or repairing systems.

“The LS6 and LS6R DC disconnect switches have a streamlined design to eliminate the need for external bridging links or jumpers to lower heat dissipation,” said Craig Greeson, Littelfuse Industrial Business Unit Product Manager. “This increases energy efficiency as well as decreases installation and maintenance time for applications in photovoltaic and energy storage systems, oil and gas, railway, and uninterrupted power systems.”

The LS6R offers a patented operation system that minimizes damage caused by arcs upon disconnection to increase product reliability and longevity.

Key benefits of both the LS6 and LS6R series of DC disconnect switches include:

  •    –   a high-level disconnection insulation to provide a barrier to stop conduction when switch is in off position for added safety
  •    –   self-cleaning blade contacts that eliminate performance degradation (from increased electrical resistance over time) to ensure consistent behavior across the product’s lifespan
  •    –   an internally-located “sandwich-type” 2-contact symmetrical design to mitigate the electromagnetic force of repulsion to offer enhanced functionality in short-circuit conditions
  •    –   Meeting UL 98B, UL 94, and IEC 60947-3 standards

For more information, visit www.Littelfuse.com.

Related Articles



Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More



Latest Articles

  • How Festo is Building the Next-Gen Workforce Through Technical Education & Skills Competitions

    How Festo is Building the Next-Gen Workforce Through Technical Education & Skills Competitions

    July 31, 2026 By Krystie Johnston Festo is a leader in industrial automation and technical education. For decades, they have sponsored SkillsUSA and WorldSkills mechatronics competitions to align education and industry, supporting the workforce of the future. Festo Didactic (the teaching arm of the Festo Group) has been an active participant and sponsor of SkillsUSA… Read More…

  • Driving the Clean Energy Transition with High-Voltage Power Transformers

    July 23, 2026 Utility-Scale Renewable Energy Project, Jan 2026 Project Overview A global renewable energy leader—operating across Europe, North America, and Latin America—continues to expand its portfolio of utility-scale solar and wind projects to accelerate the net-zero transition. With deep expertise in development, investment, and asset management, the organization focuses on delivering long-term, low-risk clean energy… Read More…