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The Earthing Switch is a manually operated device with safety interlocking keys, designed to ground electrical circuit on both side of AC Vacuum Circuit Breaker when the AC Vacuum Circuit Breaker is open The Earthing Switch is a manually operated device with safety interlocking keys. It is as safety device designed to ground electrical circuit on both sides of the AC .

Earthing switch is a mechanical switching device which earths parts of an electrical circuit. Disconnecting switches are primarily used to visualize whether a connection is open or closed.