Functional Devices RIB Fan Safety Alarm Circuits

Prices starting at:
Price $121.64
Call for Availability
SKU
AHU-RIB

Air-handling unit fan safety alarm circuits for controlling fan start/stop and fan safety shutdown.  Master relays have one or two 24 VDC relay outputs and a 10-amp dry contact. Available with two, four, or six normally closed alarm inputs. 24 VAC/VDC power input. NEMA 1 housing.

See model selection chart below.

Typical applications include low limit freeze protection (to stop fan and cut power to damper actuator), static pressure to monitor for high/low pressure conditions, or smoke detector/fire alarms.

  • 24 VAC/VDC power input
  • Two, four, or six normally closed alarm inputs
    LED status of all inputs, master relay, and power input
  • NEMA 1 enclosure with clear lid for viewing status LEDs
  • Contact closer outputs allow a DDC controller to determine the shutdown cause
  • UL, cUL, CE, RoHS, CSFM approvals
  • Track mount hardware included

Functional Devices RIB Air Handling Unit Fan Safety Alarm Circuits

Don't see the configuration you need? Call us at 800-953-7626.

Alarm CircuitsMaster Relay OutputsClick for Price
and Availability
AHU Fan Safety Alarm Circuit, NEMA 1 Housing, Track Mount Hardware
4 N/C Alarm Inputs1 x 24 VDC, 1 x 10A Dry Contact RIBLB
2 N/C Alarm Inputs2 x 24 VDC, 1 x 10A Dry Contact RIBLB-2
4 N/C Alarm Inputs2 x 24 VDC, 1 x 10A Dry Contact RIBLB-4
6 N/C Alarm Inputs2 x 24 VDC, 1 x 10A Dry Contact RIBLB-6
Copyright 1995-2023 © Lesman Instrument Company