Description
The Functional Devices RIBU1C is the go-to enclosed pilot relay for HVAC technicians and building automation professionals. Sold here as a contractor case of 100, this relay delivers the same trusted performance installers rely on — pre-mounted and pre-wired in a compact gray housing, ready to drop in and wire up on any job.
The RIBU1C accepts both low-voltage (10–30 VAC/DC) and line-voltage (120 VAC) coil input, making it one of the most versatile relays in the field. Use it to interface a 24V thermostat signal with a 120V load, isolate control circuits, drive contactors, or manage BAS/HVAC switching applications — all with a single part.
Buying in a case of 100 keeps your supply house stocked and your trucks loaded for the jobs that count.
Features:
- 10 Amp SPDT (Single-Pole Double-Throw) contacts — handles light electrical loads, contactors, and pilot control circuits
- Wide coil voltage range — accepts 10–30 VAC/DC or 120 VAC, eliminating the need for multiple relay SKUs
- Pre-mounted and pre-wired in a NEMA 1 gray housing — no separate socket, rail, or enclosure needed
- ½” NPT conduit nipple for fast, code-friendly installation directly into equipment knockouts
- LED status indicator — green LED lights when relay is activated for quick visual confirmation
- Continuous duty coil rated for 10 million+ mechanical cycles minimum
- Operate time: 20ms
- Operating temperature: -30°F to 140°F | Humidity: 5–95% non-condensing
- UL Accepted for plenum use, UL Listed, UL916, UL864, C-UL, California State Fire Marshal, CE, RoHS
- Made in the USA
- Sold as a case of 100 units — ideal for contractors, wholesalers, and service fleets
Applications:
- HVAC control and isolation relays
- Building automation systems (BAS)
- Low-voltage-to-line-voltage switching
- Condensate overflow alarms
- Humidifier and thermostat interfacing
- Low-horsepower motor and lighting control
