This is a surge protector.
Surge protector schematic.
The circuit once built and installed in your house will assure a total safety to the various connected appliances from all possible sudden voltage triggers.
However it is not limited particularly in ac grid lines.
Surge protector or surge protection device is a device that will provide surge suppression or voltage spike suppression so that sensitive devices will not get damage.
Assortment of surge protector wiring diagram.
A wiring diagram is a simplified traditional photographic representation of an electrical circuit.
This circuit helps in protecting the equipment from the damage which is caused by transient surge voltages like strikes of lightning apparatus switching operations.
A simple circuit idea of a mains surge protector unit has been explained in this article.
Surge protection circuit is the one referred by many as protector for voltage spikes in ac grid lines.
As we all know sudden mains domestic voltage fluctuations are quite inevitable and can induce serious harm to our household electrical appliances.
This design is not great it s slow to act depending on a relay it will take many ms to switch off at current max relay current and a 250v mov in 120v installation won t help much either.
A surge protector is an electrical device which is designed to neutralize minor electrical spikes and transients that normally keep appearing in the mains utility lines.
Surge protector circuit diagram.
A word of caution.