PURPOSE: An indoor load break switch is provided to reduce the height of a rotation space of a terminal switch by rotatably supporting the terminal switch between an input terminal and an output terminal. CONSTITUTION: A terminal switch(20) is rotatably installed between an input terminal and an output terminal. A support unit(40) is hinged with one point between both sides of the terminal switch and supports the terminal switch to rotate. A terminal switch driving unit(30) is linked with a part of the terminal switch and rotates the terminal switch with a conductive state and a separated state.
