Latching Relay Circuit With Reset Button

The relay will continue to be in on state even after the force is removed from the blue button until and unless the reset button is pressed or reset signal is provided to the module.

Latching relay circuit with reset button.

Plc send a one shot pulse to activate the relay. These relays switch through a series of different circuit configurations every time they receive an input voltage. A latching relay will. An external switch initially turns the relay on then it is kept on by its own contact.

There are two kinds of latching relays. Also in same time relay has to activate a hooter which is powered by 230v ac. 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. And provide a acknowledge reset button to stop the hooter.

The covered terminals prevent contact with live connections. The realy circuit must hold the signal until it resets by using an acknowledge reset button. Here i demonstrate a circuit which is a simple asynchronous sr latch using a relay. An electrically latched relay is a standard relay with one of its own contacts wired into its coil circuit.

An external reset switch interrupts power to the relay which turns it off. I found promising looking one button two relay circuit. Use them to control motors pumps and lighting. Mount to 35 mm din rail.

When the push to make button is pressed 12v goes across the coil energising the relay. The input voltage latches them in position so they don t require a constant voltage to stay switched. The diagram above shows how such a relay can be used to make a latching relay circuit the circuit has two buttons one is a push to make which closes when pressed but is otherwise open and the other is a push to break which opens when pressed but is otherwise closed. Simple soft power latching circuit for a microcontroller.

But it should reset itself back to when input voltage drops to zero. I have an automotive application where i would need a 12v relay circuit that can be toggled with single button between on off.