To provide a switch, which can withstand even multiple times of inspection and which can surely maintain the contact condition, by arranging an elastic member under a changeover spring so as to reinforce the spring performance.

Connection between a changeover spring 30 and a contact plate 40 is disconnected only at the time of inspection, and at the same time, the changeover spring 30 and a signal fetching member 70 are connected to each other. An inspection needle 74 of the signal fetching member 70 reaches the changeover spring 30. The changeover spring 30 is displaced downward by the inspection needle 74, and connection between the changeover spring 30 and the contact plate 40 is disconnected, and at the same time, current of the changeover spring 30 flows to the inspection needle 74 through the connection between the changeover spring 30 and the inspection needle 74. As a result, current can be fetched outside. After concluding the inspection, the signal fetching member 70 is separated from a switch. At this stage, the changeover spring 30 is surely restored to the original position by the restoring force of the elastic member 50 and the bias force of the changeover spring 30 itself.