Littelfuse Expands Lineup of DC Contactors for eMobility and Industrial Applications

New DC contactors to support the robust requirements of next-generation commercial electric vehicles

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CHICAGO, April 4, 2023 --  Littelfuse, Inc. (NASDAQ: LFUS), an industrial technology manufacturing company empowering a sustainable, connected, and safer world, announced a significant expansion of its portfolio of direct current (DC) contactors developed specifically for eMobility and industrial applications.

"With this latest expansion of DC contactors, we’re aiming to provide design engineers with more flexibility for developing the next generation of high-powered commercial electric vehicles,” said Todd Phillips, Littelfuse Senior Product Manager for Commercial Vehicle Products. “Plus, we’re expanding our ability to meet the needs of our industrial customers by offering dependable high-current switching products for electrical control systems." .

A Broad Offering of DC Contactors for Electric and Hybrid Vehicles and Industrial Applications

Littelfuse DC contactor relays are available with continuous current ratings up to 500 A and maximum voltage ratings up to 1800 V. Multiple designs are available to meet the requirements of a wide variety of applications, including:

  • electric material-handling vehicles, such as forklifts and tow motors
  • fully electric construction equipment
  • battery electric utility vehicles for transportation, delivery, and maintenance services
  • electric buses and heavy trucks
  • two- and three-wheel electric vehicles
  • electric control systems of communication power supplies, uninterruptible power supplies (UPS), and engineering machines

Highlights of the New DC Contactors Available from Littelfuse

Littelfuse began offering high-voltage DC contactors for electric vehicle and alternative energy applications in the spring of 2020 when it first launched several new DCN Series contactor relays, including DCNLEV, DCNEVT, DCNEV, and DCNSEV Series products. The latest additions to the growing portfolio include the:

  • DCNLR Series: remote-operated contactor with a space-saving design; ideal for safely disconnecting DC energy sources in applications that require continuous run time.
  • DCNHR Series: high-current, high-voltage contactor with a resin body for corrosion resistance in harsh automotive environments; permanent magnet blows the magnetic field horizontally to achieve a high-voltage DC cutoff; sealed contacts for maximum safety.
  • DCNLB Series: normally closed high-current contactor available in single-coil and double-coil configurations; designed for electrical control systems of communication power supplies, UPS, and industrial equipment; able to make and break up to 1600 A.
  • DCNLM Series: high-current contactor relay for a wide variety of stationary applications, including electrical control systems for communication power supplies, industrial machines, and UPS; available with up to 400 A contact switching capability.
  • DCNLJ Series: contactor for high-current contact switching in electric control systems of material handling, UPS, and industrial machinery; polarized models rated for 96 V (110 V max) and non-polarized models rated for 48 V (60 V max); 125 A, 200 A, and 250 A continuous current ratings available.
  • DCNLH Series: magnetically latching, bistable contactor relay for high-current contact switching; designed for telecom and datacom power supplies and industrial control equipment; able to make and break up to 800 A.


Requests for DC contactors can be placed through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit

For More Information

Additional information, including datasheets, application notes, and a selection guide, is available via the Littelfuse high-voltage DC contactor relays page. For technical questions, please contact

About Littelfuse

Littelfuse (NASDAQ: LFUS) is an industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 15 countries, and with approximately 17,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets – everywhere, every day. Learn more at