Functional Devices
A Leader in Building Controls
We strive for our products to have zero failures in the field. We demonstrate this value by testing and inspecting every item we produce in Indiana.
Functional Devices
A Leader in Building Controls
We strive for our products to have zero failures in the field. We demonstrate this value by testing and inspecting every item we produce in Indiana.
About Functional Devices
Founded in 1969 by engineer and electronics enthusiast Albert Rittmann, Functional Devices has grown from humble beginnings into a leading provider of building automation and lighting solutions. Known for our RIB® (Relay in a Box®) product lines, we proudly manufacture products in America’s Heartland of Indiana. Our commitment to ease of installation, performance, and durability provides our customers with unparalleled confidence and peace of mind. Simply put, when you choose Functional Devices, you’re choosing unmatched reliability in every box.
Shop Categories
Shop Series
RIB Building Automation: Metal Enclosures
Our thoughtfully designed products are easy to install, deliver consistent performance, and can withstand harsh applications.
RIB Lighting Controls: Lighting Transformers
Ensure continuous lighting in every situation. You don’t have to worry about costly disruptions when selecting our lighting products for your application.
RIB Building Automation: Metal Enclosures
Our thoughtfully designed products are easy to install, deliver consistent performance, and can withstand harsh applications.
RIB Lighting Controls: Lighting Transformers
Ensure continuous lighting in every situation. You don’t have to worry about costly disruptions when selecting our lighting products for your application.
Top Selling Products
$48.33
$24.40
$28.90
$49.78
$530.13
$118.50
$131.00
$126.85
$70.80
Resources
Explore our Fire Safety resource hub, offering valuable resources like product data sheets, installation manuals, and technical specs to assist with implementing Functional Devices’s advanced fire protection solutions.
