The isolating switch is a switching device mainly used for isolating power supply, switching operation, connecting and cutting off small current circuit.

The isolating switch uses a rotatable isolating hook and a grounding hook to isolate the power source and the load. When the isolation hook and the grounding hook are respectively connected to the conductive part, the circuit is isolated and current cannot flow; when neither the isolation hook nor the grounding hook is connected to the conductive part, the circuit is opened and current can flow.