The present invention relates to a molded case circuit breaker, in which a locking member is formed at an inner side of a lever and an anti-rotation member is formed at an upper like. Accordingly, the locking member can be brought into contact with the anti-rotation member even though a handle is rotated to an OFF position even in a fused state between a fixed contactor and a movable contactor, thereby preventing a rotation of the handle to the OFF position.

A switching device and apparatus for switching on suddenly has an actuating mechanism element operatively connected to a latching mechanism by a transmission mechanism, The latching mechanism operates a switching lever through a further transmission mechanism. A contact assembly has a fixed switching piece facing a moveable switching piece that is guided in a contact slide. In the latching mechanism, a lever is arranged in operative connection with a locking part that is operatively connected to a transmission element which acts on the moveable switching piece.

A switching device and apparatus for switching on suddenly has an actuating mechanism element operatively connected to a latching mechanism by a transmission mechanism, The latching mechanism operates a switching lever through a further transmission mechanism. A contact assembly has a fixed switching piece facing a moveable switching piece that is guided in a contact slide. In the latching mechanism, a lever is arranged in operative connection with a locking part that is operatively connected to a transmission element which acts on the moveable switching piece.

The present disclosure discloses a ground fault circuit breaker protector for wrong wiring power-off protection, and belongs to the technical field of ground fault circuit breaker protectors. The ground fault circuit breaker protector includes two conductors fixedly mounted inside a shell. One of the conductors is a power input end; and a line output end is electrically connected to a load output end through a transfer relay and forms the other conductor. The ground fault circuit breaker protector further includes a reset mechanism and a movement arm. By means of pressing the RESET push rod, the push rod is locked on the sliding block by the buckle; under the elastic action of the first springs and the second spring, the sliding block pushes the movement arm to contact the line output end and the load output end.

The present disclosure discloses a ground fault circuit breaker protector for wrong wiring power-off protection, and belongs to the technical field of ground fault circuit breaker protectors. The ground fault circuit breaker protector includes two conductors fixedly mounted inside a shell. One of the conductors is a power input end; and a line output end is electrically connected to a load output end through a transfer relay and forms the other conductor. The ground fault circuit breaker protector further includes a reset mechanism and a movement arm. By means of pressing the RESET push rod, the push rod is locked on the sliding block by the buckle; under the elastic action of the first springs and the second spring, the sliding block pushes the movement arm to contact the line output end and the load output end.

A circuit breaker lockout apparatus, in particular to a motor circuit breaker lockout apparatus, includes two half-shell like housing parts, in particular housing halves, and an adjustment element. The two housing parts are assembled to form a housing shell having a rear wall and that are connected to one another via a pivot joint that defines a pivot axis about which the two housing parts are pivotable relative to one another between a release position and a clamping position. The adjustment element is adjustable between a base position and a locked position and that is in particular rotatable about an axis of rotation in order to transfer the two housing parts from the release position to the clamping position.

A circuit breaker lockout apparatus, in particular to a motor circuit breaker lockout apparatus, includes two half-shell like housing parts, in particular housing halves, and an adjustment element. The two housing parts are assembled to form a housing shell having a rear wall and that are connected to one another via a pivot joint that defines a pivot axis about which the two housing parts are pivotable relative to one another between a release position and a clamping position. The adjustment element is adjustable between a base position and a locked position and that is in particular rotatable about an axis of rotation in order to transfer the two housing parts from the release position to the clamping position.

Circuit breakers with handles having at least one handle bearing pin that contacts an upper end portion of a moving arm and allows the arm to rotate to “OFF”, “ON” and “TRIP” positions, typically about 90 degrees of rotation.

An operating attachment for arrangement on a predefinable switching device and for operating a pivotable switching device toggle of the switching device includes: a one-sided open housing positionable on the switching device; a rotatable shaft having a rotation axis; a manual operating part, the manual operating part being situated on the rotatable shaft; a switch-on projection for pivoting the switching device toggle in a first pivot direction, the switch-on projection being situated on the rotatable shaft; a switch-off projection for pivoting the switching device toggle in a second pivot direction opposite the first pivot direction, the switch-off projection being situated on the rotatable shaft; and a housing stop for contacting a stop edge of the switch-off projection, the housing stop being situated in the one-sided open housing. The switch-off projection yields resiliently such that the switch-off projection is bent for contact with the housing stop.

The present disclosure discloses a special-purpose ground fault circuit breaker, belonging to the technical field of sockets, which comprises at least two conductors, a socket box, a testing mechanism, a reset mechanism and a grounding connector, wherein the at least two conductors are electrically isolated, the reset mechanism comprises a moving arm, the moving arm and a power input terminal form one of the conductors, a socket silver point forms the other conductor, and the socket silver point and the power input terminal are fixedly installed in the socket box. The structure mechanism is simple, simplifying the internal structure of a leakage protection socket, reducing the manufacturing cost of the leakage protection socket, and reducing the manufacturing procedures.