About Us

Welcome to the official blog of Functional Devices, home of the original RIB® relay and RIB® family of products.

Located in Russiaville, Indiana; Functional Devices has proudly manufactured and designed quality electronics since 1969.  We strive to progress in the building automation industry, and continue to provide great quality parts and customer service.

Have a technical question regarding one of our products or an application?  Our tech-support is informative and helpful.  800.888.5538

There are many ways to connect with Functional Devices for the latest in

  • Building automation
  • Lighting controls
  • Energy-saving devices
-Follow us on Twitter @RelayinBox
-Mobile! Check us out on your smartphone at rib.mobi
Keep in touch with RIB for product information, data sheets, contests and promotions, and more!
Thank you for visiting and we hope come back soon!
-Your friends at Functional Devices

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