Simple Relay Schematic Diagram. If you need a relay diagram that is not included in the 76 relay wiring diagrams shown below please search our forums or post a request for a new relay diagram in our relay forum. In this example we are simply turning on a light.
Let s say were using household voltage in this circuit which is 110 120 vac. In relay logic circuits the contacts no and nc are used to indicate normally open or normally close relay circuit. In this example we are simply turning on a light.
In the above circuit 5v relay is powered by a 9v battery.
In the above circuit 5v relay is powered by a 9v battery. At the initial condition when switch is open no current flow through coil hence common port of relay is connected to no normally open pin so the. An on off switch is added for the switching purpose of the relay. Assortment of 12 volt relay wiring diagram.
