A toggle lever connection for connecting at least two toggle levers is disclosed. The toggle levers each include two grooves arranged opposite each other. The toggle lever connection includes a frame and a slider with one hook per toggle lever. The frame and the slider run into each other and can be displaced in relation to each other between a first, open position, in which the toggle lever connection can be placed onto the at least two toggle levers or removed therefrom, and a second, closed position, in which the hooks grip into the grooves of the at least two toggle levers, thereby locking the toggle lever connection to the toggle levers.

Circuit interrupter devices have a first housing with a circuit interrupter, a second housing coupled to the first housing, a ground fault circuit and current transformer in the second housing. The current transformer has an open channel. The circuit interrupter devices also include at least one power conductor having a rigid or semi-rigid body with opposing first and second end portions extending between the first and second housings. The second end portion of the at least one power conductor extends through the open channel in the current transformer and terminates in a breaker load collar(s).

An enclosed switch, a bus plug or a panelboard switch with means to lock them in an OFF position are provided. An enclosed switch comprises an operating handle with a first hole situated at a distal end and an enclosure including a cover. The operating handle is disposed external to the enclosure. The cover having a flange including a tab formed with a second hole that is configured to be aligned with the first hole of the operating handle in order to lock the enclosed switch in an OFF position without the use of a handle guard.

An enclosed switch, a bus plug or a panelboard switch with means to lock them in an OFF position are provided. An enclosed switch comprises an operating handle with a first hole situated at a distal end and an enclosure including a cover. The operating handle is disposed external to the enclosure. The cover having a flange including a tab formed with a second hole that is configured to be aligned with the first hole of the operating handle in order to lock the enclosed switch in an OFF position without the use of a handle guard.

A switchgear, in particular a circuit protection device, includes: a housing; a fixed contact that is fixed to the housing; a movable contact, the movable contact being arranged on a contact arm that is arranged in the switchgear so as to be movable; a latching device that is connected to the contact arm; a manual actuation device that has an actuation projection, which manual actuation device is connected to the latching device by a bar, the movable contact being brought into contact with the fixed contact when the actuation projection is moved from an off-position of the actuation projection to an on-position of the actuation projection. When the actuation projection is moved from the on-position towards the off-position as far as a specified trip position of the actuation projection, the bar remains still. When the projection is moved past the trip position, the bar is moved past a holding point.

A switching mechanism of a circuit breaker includes a case, a handle rotatably coupled to a side plate fixed to the case, a U-pin coupled to a lower portion of the handle, a lever coupled to the U-pin, and a crossbar disposed in a mounting portion protruding from the case to be perpendicularly movable, the crossbar being moved by receiving contact pressure of the lever, wherein the lever is provided with a contact pressure portion formed in a curved surface on a lower surface thereof, to press the crossbar perpendicularly downward upon closing a circuit.

A circuit breaker handle connection structure, comprising a handle (1) and a lever (2), the handle (1) and the lever (2) being assembled together. The bottom of a handle disc portion (101) of the handle (1) is provided with a mounting recess (102); the bottom (201) of the lever (2) is mounted in the mounting recess (102) and can rotate; when the lever (2) rotates to a fixed position in the mounting recess (102), the degree of freedom is limited by limiting bosses (103).

A toggle lever connection for connecting at least two toggle levers is disclosed. The toggle levers each include two grooves arranged opposite each other. The toggle lever connection includes a frame and a slider with one hook per toggle lever. The frame and the slider run into each other and can be displaced in relation to each other between a first, open position, in which the toggle lever connection can be placed onto the at least two toggle levers or removed therefrom, and a second, closed position, in which the hooks grip into the grooves of the at least two toggle levers, thereby locking the toggle lever connection to the toggle levers.

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.

The present disclosure relates to a circuit breaker, and more particularly, to a switching mechanism of a circuit breaker. A switching mechanism of a circuit breaker according to one embodiment of the present disclosure includes a case, a handle rotatably coupled to a side plate fixed to the case, a U-pin coupled to a lower portion of the handle, a lever coupled to the U-pin, and a crossbar disposed in a mounting portion protruding from the case to be perpendicularly movable, the crossbar being moved by receiving contact pressure of the lever, wherein the lever is provided with a contact pressure portion formed in a curved surface on a lower surface thereof, to press the crossbar perpendicularly downward upon breaking a circuit.