Siemens SSD61U, 24V 0-10VDC NSR PICV Actuator

This Siemens actuator operates on 24 volts and features a 0-10 VDC control signal. It is a non-spring return (NSR) type, designed for use with pressure independent control valves (PICV). The device adjusts the flow of water or air in heating, ventilation, and air conditioning (HVAC) systems by modulating the valve position in response to the control signal.