Functional Devices

Functional Devices, Inc. is a U.S.-based manufacturer specializing in relays, current sensors, power supplies, and other control devices primarily for building automation, HVAC, lighting, and energy management systems. The company generates revenue by designing and producing a wide range of prepackaged and customizable electronic control solutions that are sold to contractors, OEMs, and distributors in the commercial and industrial sectors. Founded in 1969 and headquartered in Indiana, Functional Devices is known for its RIB (Relay in a Box) product line, which has become an industry standard for reliable and easy-to-install relay solutions. The company emphasizes quality, customer support, and innovation, maintaining a strong reputation for products that simplify installation and integration in building systems. Candidates should be aware of its longstanding presence in the automation industry and its commitment to American manufacturing.

Recent Posts by Functional Devices

1-7 of 7