Functional Devices RIBLB-2 : AHU Fan Safety Alarm and General Purpose Logic Circuit, 24 Vac/dc Power Input, 2 Alarm Inputs all with N/C Outputs, NEMA 1 Housing
Specifications
Expected Relay Life: 10 million cycles minimum mechanical
Operating Temperature: -30 to 140° F
Humidity Range: 5 to 95% (noncondensing)
Operate Time: 8mS
Power Input: 4 Amp Max @ 24 Vac/dc ; 50-60 Hz
Alarm Status: LED On = Activated
Dimensions: 4.28" x 7.00" x 2.00";with .75" NPT Nipple
Track Mount: MT212-6 Mounting Track Provided (RIBMNLB-6) MT212-4 Mounting Track Provided
(RIBMNLB-4, RIBMNLB-2)
Approvals: UL Listed, UL864, C-UL, CE, RoHS, CSFM
Housing Rating: UL Listed, NEMA 1, C-UL, CE
Gold Flash: No
Override Switch: No
RIBLB-2 have two Alarm Inputs and one Master Alarm. RIBLB-2 is a simple devices that combine a common relay-logic function into a small, easy-to-install, and less expensive form.
A master relay will open if any one of the normally-closed (N/C) inputs open. There are six, four, or two inputs depending on the model chosen. LED status of all inputs, the master relay, and power input
is provided. Bypass of un-used inputs is also provided. The RIBMNLB series is provided with mounting track for mounting in user-provided electrical enclosures. The RIBLB series is enclosed in a NEMA-1, 4" x 7" enclosure with a clear lid to allow viewing of the status LEDs. The master relay has three general-purpose outputs: two 24 V output terminals and one dry-contact output rated up to 10 Amp @ 277 Vac (terminals on RIBMNLB series, wires on RIBLB series.) The most com- mon application is an Air Handling Unit (AHU) fan-safety-shutdown where the master relay is used to shutdown the fan. Contact closure outputs are provided so that a DDC controller can determine the cause of a shutdown.
Data Sheets
- Mounting:
- Enclosed
- Number of Relays:
- 3
