To provide a switch unit that has a simple internal structure and a small component number and assembly work process, and can open and close plural circuits at good timing of operation.

The switch unit comprises a case that is installed at the opening edge of an electric apparatus, push buttons 40, 50 that are installed at the case 11 capable of sliding, and contacting mechanisms 20, 30 that are incorporated in the case 11 for each push button 40, 50. And by opening and shutting of a door, the driving pawls 101, 102 press respectively the corresponding plural push buttons 40, 50, and thereby, the above contacting mechanism 20, 30 are respectively driven and the plural independent circuits are opened and closed at a desired timing of operation.