At Functional Devices, we’ve spent decades creating products that simplify building automation, lighting control, and HVAC systems. Our RIB® relays, sensors, and power supplies are trusted by installers, contractors, and facility managers across the country.
We pride ourselves on quality products and responsive technical support. If you’ve got a question, we’ve probably helped someone with the same challenge before — and we’re happy to help you too. Feel free to reach out.
A few years ago, one of our long-time customers called in with a request:
“I’ve been using RIB relays for years and love them. Do you have a relay that can separate my 24Vdc signal from line voltage load wires?”
We sure do — and that’s where our T-Style RIB relays shine. In this blog, let’s explore what sets these relays apart.
Our T-Style relays, such as the RIBT2401B, are designed specifically to keep high- and low-voltage wiring separate. With these models, the low-voltage coil input (like 24V) remains isolated from the line voltage load wiring. This design enhances safety, reduces wiring errors, and streamlines compliance with electrical codes.
How the Design Works
T-Style relays feature a threaded hub on one end to connect directly to a knockout in a junction box. This creates a secure space for line voltage wiring. Meanwhile, a star grommet on the relay’s side allows low-voltage wires to connect to the coil terminals. The result? High and low voltage stay neatly separated within a single, easy-to-mount relay package.
Benefits for Installers and Facility Managers
T-Style relays can help facility managers and installers, just like our long-time customer who called in. You can expect:
- Simplified Installation. Mount directly to a junction box and run low-voltage wires through the side grommet.
- Increased Safety. Keep control and load wiring isolated to prevent mistakes and comply with electrical codes.
- Cleaner Panels. Reduce clutter and wiring overlap for a more professional installation.
- Reliable Performance. Built to the same high standards as our classic RIB relays.
The customer who called in was thrilled to discover the T-Style option. Within minutes, we’d identified the RIBT2401B as the perfect solution. By the end of the call, he was ready to place an order and to use T-Style RIB relays on future projects.
Frequently Asked Questions about T-Style Relays
Q: What makes T-Style relays different from standard RIB relays?
A: T-Style relays provide physical separation between low-voltage control wiring and line-voltage load wiring. This improves safety, simplifies installation, and helps meet code requirements.
Q: Which T-Style relay should I choose?
A: The RIBT2401B is one of our most popular models for 24Vdc coil applications, but we offer multiple T-Style options to fit various load and control voltages.
Q: Can T-Style relays be used in HVAC and lighting systems?
A: Yes. They’re ideal for HVAC equipment, lighting control, and any building automation system where low-voltage signals must be isolated from high-voltage loads.
Q: How do T-Style relays mount to a junction box?
A: The threaded hub on the relay body screws directly into a standard knockout hole. This creates a secure line-voltage compartment inside the box while leaving low-voltage connections on the relay.
Q: Are T-Style relays UL Listed?
A: Yes. All of our RIB relays, including the T-Style models, are UL Listed for safety and performance.
Ready to Learn More?
Functional Devices has been a trusted partner in building automation since 1969. Our products are designed to save time, reduce complexity, and provide reliable performance year after year. Whether it’s relays, current sensors, power supplies, or custom solutions, we’re here to support installers and facility managers every step of the way.
If you’re looking for a safer, cleaner way to separate high- and low-voltage wiring, check out our T-Style RIB relays like the RIBT2401B. Browse our website to explore the full lineup or contact our technical support team today for assistance.
About Functional Devices, Inc.
Functional Devices, Inc., located in the United States of America, has been designing and manufacturing quality electronic devices since 1969. Our mission is to enhance lives in buildings and beyond. We do so by designing and manufacturing reliable, high-quality products for the building automation industry. Our suite of product offerings include RIB relays, current sensors, power controls, power supplies, transformers, lighting controls, and more.
We test 100% of our products, which leads to less than 1 out of every 16,000 products experiencing a failure in the field.
Simply put, we provide users of our various products confidence and peace of mind in every box.