Abstract: A power supply circuit disconnection device includes: a first connector housing (10); a second connector housing (20); a lever (30); a main circuit switch (SW1) that is switched off at a first operation position of the lever, and is switched on at a connector fitting operation position and second operation position of the lever; a signal circuit switch (SW2) that is switched off at the first operation position and connector fitting operation position of the lever; a first lock portion (LK1) that locks the lever at the second operation position; a second lock portion (LK2) that locks the lever at the connector fitting operation position; and a lock release operation portion capable of releasing, by an operation thereof, a lock state of the second lock portion.

Abstract: A switching apparatus includes a base, a housing, a main switch for mechanically disconnecting a power supply circuit and an interlock switch for electrically disconnecting the power supply circuit. The switching apparatus also includes a lever which is rotatably supported by one of the base and the housing and also is engaged with an engaging section formed in the other of the base and the housing. The lever causes a wall of the housing to be slid in a depth direction of an annular groove of the base in accordance with a rotation of the lever. The interlock switch is disconnected ahead of the main switch by separating a movable terminal of the interlock switch away from a fixed terminal of the interlock switch when the lever is rotated to cause the housing slid in a direction away from the base.