Lever fitting type power supply circuit breaking apparatus

A lever fitting type power supply circuit breaking apparatus comprising:

• a first connector provided with a terminal;
• a second connector provided with a terminal;
• a lever movably provided on the first connector;
• a cam groove provided on one of the lever and the second connector;
• and
• a cam pin provided on the other of the lever and the second connector and adapted to be engaged with the cam groove,
• wherein in a connector temporary-fitting position, the first connector is fitted to the second connector and the terminal of the first connector is separated from the terminal of the second connector, in a connector fitting position, the first connector is fitted to the second connector and the terminal of the first connector is electrically connected to the terminal of the second connector,
• wherein the cam pin is moved along and guided by the cam groove so as to shift the first and second connector from the connector temporary-fitting position to the connector fitting position as the lever is shifted from a movement start position to a fitting completion position, and
• wherein the lever performs rotational movement between the movement start position in which the terminals of the first and second connectors are separated from each other and a rotation completion position in which the terminals of the first and second connectors are brought in electrical contact with each other, and rectilinear movement between the rotation completion position in which a fitting detection switch is in an off state and the fitting completion position in which the fitting detection switch is in an on state, and
• wherein a power supply circuit is connected in series to a relay circuit which is turned on and off by the fitting detection switch, and a power switch comprising the terminals of the first and second connector housings.