Functional Devices RIB-U1C Relay in a Box

This relay can be used for a myriad of projects. The coil voltage,(what makes the relay work), can be used with 10-30 volts ac or dc or even 120 volts ac. This means you can control anything up to an 1/8 hp fan motor on 277volts by something with voltages as small as a residential AC thermostat. (24vac) These relays are also a great option for frequency drives for use as a start signal controller. This relay can be sent a 10vdc signal from a digital output to start a VFD. With parameters set, a speed reference isn’t needed if you simply want the controlled device to run at full speed. I highly recommend this relay.

I needed a relay that could work with a new smart thermostat and my very old natural gas wall furnace. The wall furnace is controlled by a millivolt valve but the smart thermostat uses 24 V(a.c.) to control HVAC equipment. This relay allowed me to use the output from the smart thermostat to control the relay and toggle its normally open relay output. The LED is helpful to knowing the relay state. The mounting to 1/2" knockout is handy too.

My furnace guy installed this. He initially told me what we needed and not to but through his Oil company because they were charging $155 for it. Like 5 times what I paid. At least he was honest.

It provides normally open or closed dry contacts. Activated by 24 or 120 volts. (external power source) This little relay is a power house in versatility.

Having Line and low voltage makes this relay extremely versatile. the diagram is easy to follow, and the indicator light makes it a ideal, visual aid

I use it to control lights from an electric gate that provides a low logic signal of about 3-5V but it has no problem driving the relay, which was a welcome surprise since it is specified for 10-30V. The enclosure looks like it would be suitable for outdoor use but it is not sealed.

Use these a lot for work. Perfect for intended situations.

I added turbo fans to my house air conditioner ducts. I used this relay to turn on the 110VAC to the fans when the AC comes on. 24VAC from the AC controls the relay. Easy and quick. Been in use about three weeks now. Recommended.