Selector switch

A selector switch for switching a connection state between a first power source and a second power source into series connection or parallel connection, comprising:

• a fixed conductive unit that constitutes a part of an electrical circuit connecting the first power source and the second power source;
• and
• a movable connection unit that moves in a predetermined direction,
• wherein the movable connection unit includes a series-use terminal that forms a series circuit in the electrical circuit, and a parallel-use terminal that forms a parallel circuit in the electrical circuit,
• the fixed conductive unit is provided with a series-use breaking point, a part of which is interrupted, and a parallel-use breaking point, a part of which different from the series-use breaking point is interrupted,
• when the movable connection unit is positioned at a first position in the predetermined direction, the parallel-use breaking point remains disconnected in a non-conductive state, and the series-use breaking point is connected by the series-use terminal to be in a conductive state, whereby the first power source and the second power source are connected in series, and
• when the movable connection unit is positioned at a second position in the predetermined direction, the series-use breaking point remains disconnected in a non-conductive state, and the parallel-use breaking point is connected by the parallel-use terminal to be in a conductive state, thereby connecting the first power source and the second power source in parallel.