Functional Devices Motor & Electrical Parts & Accessories

Functional Devices Motor & Electrical Parts & Accessories

Functional Devices has spent more than five decades building a reputation as one of North America's most trusted designers and manufacturers of electronic control devices. Founded in 1969 and headquartered in Sharpsville, Indiana, the company brings deep engineering expertise to every product it makes — and that precision is clearly evident in its lineup of Motor & Electrical Parts & Accessories.

At the heart of the Functional Devices catalog is the iconic RIB® (Relay in a Box®) platform — a line of self-contained relay modules that have become a go-to solution for technicians working in building automation, HVAC systems, energy management, and lighting controls. These relays are designed to simplify electrical integration, eliminating the need for complex custom wiring while delivering dependable switching performance in demanding environments. For professionals who need motor control and electrical switching done right the first time, the RIB® relay family sets a high bar.

Beyond relays, Functional Devices manufactures a comprehensive range of electrical components that complement motor and control applications, including current sensors, power supplies, transformers, and power control modules. Each product is engineered to work seamlessly within larger electrical systems — whether that's a commercial HVAC installation, an industrial motor control panel, or a building-wide energy management network.

What truly sets Functional Devices apart in the Motor & Electrical Parts & Accessories space is its unwavering commitment to quality and longevity. Every product undergoes rigorous testing before leaving the factory, resulting in an industry-leading reliability standard — with fewer than 1 in 16,000 products experiencing a field failure. The company backs this confidence with an industry-leading 10-year warranty on qualifying products, a level of assurance rarely seen from electrical component manufacturers.

• RIB® Relay modules — compact, self-contained relay solutions for motor switching and building automation
• Current sensors — for monitoring motor load and electrical consumption in real time
• Power supplies & transformers — reliable power conversion for control circuits and motor accessories
• Power control modules — versatile electrical control components for HVAC, lighting, and motor applications

All Functional Devices products are designed and manufactured in the United States, reflecting the brand's long-standing commitment to domestic craftsmanship and consistent quality control. For contractors, engineers, and technicians who demand dependability from their motor and electrical components, Functional Devices delivers solutions built to perform for the long haul. Browse the full selection of Functional Devices Motor & Electrical Parts & Accessories to find the right component for your application.