About Functional Devices, Inc.
Functional Devices is a manufacturer of relays and control devices used in building automation and electrical control systems. The company designs and produces electromechanical and electronic control components used in applications such as HVAC systems, lighting controls, energy management systems, and data center infrastructure. Its product portfolio includes pre-assembled relay modules marketed under the RIB® (Relay in a Box®) brand, distributed to engineers, contractors, and original equipment manufacturers. Functional Devices supports commercial, industrial, and institutional building projects through standardized control solutions and related accessories. The company was founded in 1969 and is headquartered in Sharpsville, Indiana, United States.