3-point Differential Regulator RR3P, RR3PT
RR3P and RR3PT are two relay modules serving to control of valve or damper actuators with feedback signal 0 - 10V. The system aims to make a difference between the preset and the feedback voltage was equal to 0V. To meet this condition appropriate contacts of the S1 or the S2 are shorted.
Price: 61.8 €
RR3P has electromechanical relays with normally open contacts.
RR3PT has MOSFET solid state relays.