Latching Relay Diagram Circuit. Relay latching circuit using push button we connect relay and push button as per figure. Resistor r1 and r4 work as a current limiting resistor for transistor q1 and resistors r2 and r3 work as current limiting resistor for transistor q2.
Power source 5v 12v circuit diagram. Circuit diagram of latching circuit is simple and can be easily built. The diagram above shows how such a relay can be used to make a latching relay circuit.
The reset switch is any normally closed switch or relay contact.
For mechanical latching relays click here. The diagram of its pins is here. They are easy to understand you can see them working and they are still in use today in many many systems to switch voltage into circuits to. The second solenoid wire connects to either 14 if hot is on 11 or 24 if hot is on 21 your choice.
