Simple Latching Relay Diagram. The diagram above shows how such a relay can be used to make a latching relay circuit. When switch sw 1 is pressed for a moment the relay contacts latch in one direction and the track polarity has on one rail and on the other.
Here relay is 24 v dc operated. Other methods of operating can be used i used an automotive car remote control central door lockin. Here i demonstrate a circuit which is a simple asynchronous sr latch using a relay.
The diagram above shows how such a relay can be used to make a latching relay circuit.
To reset a latching relay another voltage pulse needs to be applied. It is common to use the term set for operating a latching relay. Latching locking relay circuit. The diagram below shows a dual coil latching relay.