Basic Latching Circuit Diagram. For mechanical latching relays click here. It is a self maintaining circuit in that after being energized it maintains that state until another input is received.
This creates a basic memory function the relay remembers. Components used in this circuit are easily available and very cheap. If a set coil refers to an output there should be a reset coil for that output reverse power flow in contact matrix is not allowed power flow one way left to right solid state relays computer aided manufacturing tech 453350 35.
Circuit diagram of latching circuit is simple and can be easily built.
This creates a basic memory function the relay remembers. When the push to make button is pressed 12v goes across the coil energising the relay. The s r latch is a flip flop circuit. The two schematic wiring diagrams below show how to wire an electrically latching relay circuit.