SWITCHING DEVICE

A switching device 1 includes a switching board 10 with busbars 30, 40, an upper case 81 and stud bolts 110A, 110B and nuts 113A, 113B for fixing fastening terminals 103A, 103B connected to wiring harnesses 100A, 100B to the busbars 30, 40. The upper case 81 includes guide walls 85A, 85B for guiding movements of the fastening terminals 103A, 103B to fastening positions, and the restriction walls 86A, 87A, 86B and 87B for restricting the rotation of the fastening terminals 103A, 103B. The restriction walls 86A, 87A, 86B and 87B are arranged to prevent a contact of the fastening terminal 103A, 103B when the fastening terminal 103A, 103B is rotated until the wiring harness 100A, 100B comes into contact with the restriction wall 86A, 87A, 86B, 87B.