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Littelfuse Introduces Space-Saving Solid-State Relays

Delivers compact and reliable operation for component density critical applications.

 

ROSEMONT, Ill., September 30, 2025 -- Littelfuse, Inc. (NASDAQ: LFUS), a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world, today announced the expanded offering to the industrial Solid-State Relays (SSRs) family of products. The additional three series of products and accessories are essential for industrial applications that demand reliable and compact switching and comply to international standards. View the video.

The expanded SSRs are available in three configurations plus added accessories:

  • SRP4-CC – Four relays in one, 4-pole design saves space by controlling multiple AC loads instead of using separate relays
  • SRP1-KC – Slim, low-profile that’s half the size of standard relays and featuring faston terminals for easier installation
  • SRP1-ME – Small size, ¼ the size of a standard relay, for simple heating in space-constrained applications
  • Accessories – Off-the-shelf accessories to quickly start using or testing SSRs

"In many machinery applications, every inch of space counts. Our compact solid-state relays give our panel builder and machine manufacturer customers the ability to add reliable solid-state switching in high-density applications without sacrificing performance," said Hugo Neri, Global Product Manager of Industrial Solid-State Relays at Littelfuse.

Typical applications for these products include:

  • Industrial machinery: Industrial ovens, sterilization systems, plastic sealing and packaging equipment
  • HVAC: Electric heaters, steam and spa equipment
  • Food & Beverage: Coffee machines, ovens, commercial fryers

With this expanded offering, Littelfuse reinforces its commitment to solid-state technology solutions. The space-saving series adds to the existing Littelfuse portfolio of panel mount, DIN-rail mount, PCB-mount solid-state-relays, HVAC solid-state timers, and power components such as SCRs and MOSFETs. This extensive range of products highlights the company's commitment to innovation and leadership, offering customers state-of-the-art solutions that set new industry benchmarks.

Space-Saving Solid-State Relays

 

For technical questions, please contact: Hugo Neri, Global Product Manager of Industrial Solid-State Relays at hneri@littelfuse.com.

About Littelfuse

Littelfuse is a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 16,000 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 Littelfuse.com.