Control Circuit used in several different applications for various purposes. Ex: Control relay using 120v single phase power supply controlling indicator lamps for a start and stop or simply Green lamp for ON & a Red lamp for OFF. This is a common Industrial Design with this particular example being a very basic example for ease of understanding.
Nonetheless this particular circuit has the potential for many different applications, uses, with many different modifications for signaling PLC’s, VFD’s, Inductive and Capacitive devices including loads with different voltages and other power sources.
