RIB® relays in Illinois are sourced through a network of authorized distributors: electrical and HVAC supply houses located across the state, stocked directly from the manufacturer. Functional Devices, Inc. manufactures the RIB® (Relay-In-a-Box®) Trifecta—relays, current sensors, and power supplies—in Sharpsville, Indiana.
Why the Authorized Channel
An authorized distributor carries stock that came directly from Functional Devices, so the model number on the box matches a current product with its full warranty. Outside authorized channels, the age and provenance of stock cannot be confirmed: a listing may be discontinued inventory or a unit whose history is unknown. A distributor is also a technical resource on an order. When a specified part is unavailable, an authorized distributor can confirm a substitute model’s ratings against the application, rather than leaving the substitution unverified.
What Illinois Distributors Stock
- General-purpose relays such as the RIBU1C (10 A SPDT) and RIB2401B (20 A SPDT) for building automation system (BAS) output switching
- Higher-current models such as the RIB24P30 (30 A DPDT) for larger or paired loads
- Split-core current sensors such as the RIBXGTA (0.75–150 A) for status and monitoring points
- UL924 emergency lighting relays such as the ESRN
- Prepackaged power supplies such as the PSH500A for control power in panel builds
Stocked inventory varies by location. An individual distributor can confirm the on-shelf availability of a specific model.
One Order for the Whole Panel
A control panel build typically requires all three parts of the RIB® Trifecta: relays for the switching points, current sensors for the status points, and a prepackaged power supply for the control power. Because all three come from one product line, an authorized distributor can cover the full bill of materials on a single order. For a panel shop or a contractor staging material for an Illinois project, that means that sourcing can be kept contained to one purchase order and one delivery.
Finding a Distributor for the Job
The Illinois distributor page maps authorized locations across the state. If a specific model is needed and its stocking location is not apparent from the map, Functional Devices can help locate it directly.
Frequently Asked Questions About Sourcing RIB® Relays
Where are RIB® relays made?
Functional Devices products are designed, manufactured, and supported in the United States, and every assembled unit is tested before it ships from the facility in Sharpsville, Indiana.
How do I find an authorized distributor in Illinois?
Use the distributor map on the Illinois distributor page. It shows authorized stocking locations across the state, and Functional Devices can help locate stock of a specific model.
Can a distributor suggest a substitute for an out-of-stock model?
Yes. An authorized distributor can confirm a substitute model’s coil voltage, contact rating, and approvals against the application, so the substitution is confirmed before the order is placed.
Do Illinois distributors carry the full product line?
Authorized distributors can order from the full Functional Devices catalog: relays, current sensors, power supplies, transformers, and enclosures. Stocked inventory varies by location, so confirm on-shelf availability with the distributor.
Does Functional Devices sell direct in Illinois?
Most customers source through a local authorized distributor, who is the contact for pricing, availability, and selection advice. Contact Functional Devices directly for help locating stock or reaching the sales team.
Source RIB® Relays in Illinois
Functional Devices manufactures the RIB® relays, current sensors, and power supplies stocked by authorized distributors across Illinois. To source a part, find an authorized Functional Devices distributor in Illinois or browse the RIB® relay lineup.