Latching Relay Circuit With Reset Button

These relays switch through a series of different circuit configurations every time they receive an input voltage.

Latching relay circuit with reset button.

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. An electrically latched relay is a standard relay with one of its own contacts wired into its coil circuit. Add tip ask question comment download. 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.

An external reset switch interrupts power to the relay which turns it off. Plc send a one shot pulse to activate the relay. An external switch initially turns the relay on then it is kept on by its own contact. The input voltage latches them in position so they don t require a constant voltage to stay switched.

Mount to 35 mm din rail. 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. Here i demonstrate a circuit which is a simple asynchronous sr latch using a relay. And provide a acknowledge reset button to stop the hooter.

There are two kinds of latching relays. 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. The covered terminals prevent contact with live connections. The realy circuit must hold the signal until it resets by using an acknowledge reset button.

Use them to control motors pumps and lighting.