On-Off Switch using relay

Here’s how industrial equipment is started and stopped using push buttons(On-Off Switch). The circuit is called a “locked-out relay.” It uses an ordinary relay and the ON switch activates the relay to close the terminals. When the switch is released, the relay remains activated and the load is powered via the contacts of the relay. When the OFF switch is pressed, the relay is de-energised and the contacts open. This removes power to the load.


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