Power source circuit shutoff device

A power source circuit shutoff device comprising:

• a base housing including:
• a first mating wall having a first terminal disposed therein, and
• a cam pin;
• a lever housing including:
• a second mating wall having a second terminal disposed therein;
• and
• an operation lever rotatably supported to the lever housing and having a cam groove for guiding the cam pin,
• wherein:
• the base housing and the lever housing are set in a lever mating start position in which the first mating wall and the second mating wall are partly overlapped with each other and the cam pin is entered into the cam groove of the operation lever, and a rotation of the operation lever moves the cam pin in the cam groove to thereby cause a mating force between the first mating wall and the second mating wall, thereby proceeding a mating between the first mating wall and the second mating wall, and the first terminal and the second terminal are electrically connected in a lever mating completion position,
• the base housing and the lever housing respectively have restriction ribs configured to be engaged with each other between the lever mating start position and the lever mating completion position to thereby guide the mating and separating between the first mating wall and the second mating wall, and configured to restrict an inclination of the operation lever in a rotational direction, and
• each of the restrictions ribs has a complementary L-shape configured to be engaged with each other.