Ruskin VAFB24-BAC RAMS 24V BACnet Air Measurement Actuator with Spring Return

The Ruskin VAFB24-BAC RAMS is a communicative actuator designed for adjusting air dampers in ventilation and air conditioning systems. This 180 in-lb torque actuator features Ethernet 10/100 Mbit/s, TCP/IP, and an integrated web server with BACnet/IP and BACnet MS/TP protocol support. Setup is performed via the integrated web server and Ethernet IP connection, connecting directly to the actuator.

Key Features:

• Two analog inputs for flow sensing and receiving a DDC setpoint
• Controls up to three additional actuators via MP-Bus
• Fail Safe Signal Interlock drives damper closed on loss of signal
• Spring open or spring close on loss of power as required for application
• Overload protected with automatic stop when end stop is reached—no limit switches required
• Maximum 95° angle of rotation, adjustable with mechanical stop
• Built-in trending: 31 days short-term, 13 months long-term compressed file

Power supply requirements are 24 VAC ± 20% 50/60 Hz or 24 VDC ± 10%. Running time is 95 seconds open and less than 60 seconds spring close. This actuator is factory-installed on Ruskin AIRFLOW-IQ Series Air Measurement Stations and serves as the BACnet interface and setup port for the air measurement station.