Functional Devices model RIBU1C is our most popular RIB® (Relay-In-Box) model. Here's why:
- It is a prepackaged product: wires, LED indicator, 10 Amp relay, and protection
circuitry are all contained in a single enclosure.
- It can be nipple-mounted to a standard junction box knockout.
- It has an LED indicator to let you know when the relay coil has been activated.
- It is pre-wired.
- It can power devices up to 10 Amps on its single-pole double throw (SPDT) contacts.
- It can be controlled by 120 Vac sources (such as light switches) as well as 10-30 Vac/dc sources (such as transformers, DC power supplies, building automation controls.
- AND... It is affordable!
How to use the RIBU1C - Most Common Application:
Turn on a 120V indoor blower fan from a 24V household thermostat.
- Turn off Thermostat and Circuit Breaker (at electric panel)
- Connect Wht/Blu wire to G terminal of Thermostat
- Connect Wht/Yel wire to C or Comm terminal of Thermostat
- Connect ORG wire to 120 Vac line voltage (from electrical panel breaker feed)
- Connect YEL wire to 120 Vac input of Fan
- Connect Neutral wire from Neutral Bus to Neutral input of Fan
- Individually cap off unused wires using wire nuts (Wht/Blk, Blu wires)
- Double-check wiring
- Turn on Circuit Breaker
- Set Thermostat to turn on Fan
- RIBU1C should be activated and Fan should turn on.
If you have any questions, call or email Tech Support! We will be happy to help you with anything you need!
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.