RIBMNLB AHU Fan Safety Alarm & General Purpose Logic Circuit, 24 Vac/dc Power Input, 2.75 in Track Mount by Functional Devices

Description

RIBMNLB Air Handling Unit (AHU) Fan Safety Alarm & General Purpose Logic Circuit, 24 Vac/dc Power Input, 2.75 inch Track Mount

• 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 master relay has three general-purpose outputs: two 24 V output terminals and one dry-contact output rated up to 10 Amp @ 277 Vac
• The most common 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
• Models, all with N/C Outputs
  • RIBMNLB-2 has 2 Alarm Inputs and 1 Master Alarm
  • RIBMNLB-4 has 4 Alarm Inputs and 1 Master Alarm
  • RIBMNLB-6 has 6 Alarm Inputs and 1 Master Alarm
• Alarm inputs must be N/C
• Isolated Dry Contact Outputs: Each Rated 1.5 A  @  24 Vac/dc
• R7 Master Contact
  • 10 A @ 277 Vac (Typically used to shut down fan)
  • 10 A @ 24 Vdc (Typically used to shut down other relays)
• Supply Power: 24 Vac
• 2.75 inch Track Mount