Functional Devices RIBU1C — enclosed pilot relay, 10 amp SPDT, with a dual 10–30 Vac/dc and 120 Vac coil in a NEMA 1 housing.
RIB packaging puts relay, socket, transient protection, status LED and housing in one prewired assembly, so a low-voltage controller output can switch a line-voltage load.
RIB packaging puts relay, socket, transient protection, status LED and housing in one prewired assembly, so a low-voltage controller output can switch a line-voltage load.
- One SPDT continuous-duty relay, 10 amp resistive at 277 Vac and at 28 Vdc
- Coil 10–30 Vac/dc or 120 Vac, 50–60 Hz; pull-in 9 Vac / 10 Vdc, drop-out 2.1 Vac / 2.8 Vdc
- Coil current 46 mA at 24 Vac, 18 mA at 24 Vdc, 28 mA at 120 Vac
- 480 VA pilot duty at 240–277 Vac; 600 W tungsten at 120 Vac normally open, 240 W normally closed
- Operate time 20 ms, 10 million cycles minimum mechanical life, gold-flash contacts
- 1.70" H × 2.80" W × 1.50" D, 0.50" NPT nipple, 16" 600 V leads
- UL916 listed, accepted for use in plenum; -30 to 140 °F
Functional Devices lists UL864 and California State Fire Marshal against the red RIBU1C-RD, not this model, so specify the RIBU1C-RD where a fire signalling listing is required. RIBH1C is the same relay with a 208–277 Vac coil; RIBU1C-N4 uses a NEMA 4X enclosure under UL508.
Compatibility and alternatives
Functional Devices lists UL864 and California State Fire Marshal against the red RIBU1C-RD, not the RIBU1C. Specify the RIBU1C-RD where a fire signalling listing is required. The RIBH1C is the same relay with a 208–277 Vac coil, and the RIBU1C-N4 uses a NEMA 4X enclosure under UL508.
FAQ
Is the RIBU1C UL 864 listed?
No. It is UL916 listed and accepted for use in plenum. The UL864 listing belongs to the RIBU1C-RD.
What coil voltages does it accept?
10–30 Vac/dc or 120 Vac, 50–60 Hz.
