Latching Relay Circuit With Reset Button

An electrically latched relay is a standard relay with one of its own contacts wired into its coil circuit.

Latching relay circuit with reset button.

Here i demonstrate a circuit which is a simple asynchronous sr latch using a relay. An external reset switch interrupts power to the relay which turns it off. To use this latching relay circuit just press the button connected to relay 1 and the load will stay on even if the button is released. Also in same time relay has to activate a hooter which is powered by 230v ac.

A general purpose relay switch is designed to function as a bridge on one or more connected devices or circuits receiving an input signal from one source and transmitting an on off set reset output to another. This is achieved when an electromagnetic current generated by the electrical input from the first device attached to the relay causes the contacts in the switch to open or close. To stop just press the button connected to relay 2 and the load will turn off and stay off until you push the 1st button again. An external switch initially turns the relay on then it is kept on by its own contact.

The realy circuit must hold the signal until it resets by using an acknowledge reset button. The covered terminals prevent contact with live connections. Add tip ask question comment download. Plc send a one shot pulse to activate the relay.

And provide a acknowledge reset button to stop the hooter. The input voltage latches them in position so they don t require a constant voltage to stay switched. When the push to make button is pressed 12v goes across the coil energising the relay. Use them to control motors pumps and lighting.

Mount to 35 mm din rail.