TERMINAL BLOCK AND AIR CIRCUIT BREAKER

A terminal block comprises power-on parts (6) arranged at a base part (3) of the terminal block (101); terminal pressing parts (5) which press terminals (9) connected to the power-on parts (6) towardsthe power-on parts (6) for connection; a cam (4) arranged in the terminal block (3) and rotated towards one direction with a shaft part (4a) as the center to make the pressing state of the pressing parts (5) towards the power-on parts (6) to change corresponding to the rotating state, wherein the terminal pressing parts (5) and the power-on parts (6) are arranged in a one-to-one corresponding manner. The cam (4) controls the terminal pressing parts (5) to be in an OFF state that the terminal pressing parts (5) are separated from the side of the power-on parts (6) in a first rotating range with the shaft part (4a) as the center and controls the terminal pressing parts (5) in an ON state that the terminal pressing parts (5) are pressed to the side of the power-on parts (6) in a second rotating range. 具有：通电部件(6)，其设置