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.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A heat destructive disconnecting switch, comprising a first conductive member, a second conductive member, a movable conductive member, an overheating destructive member, an operating component, and a second elastic member. The movable conductive member enables electrical conduction with the first conductive member and the second conductive member. A first elastic member having a first spring and a second spring which are compressed and provided with a first elastic force, and the second elastic member is provided with a second elastic force. When the overheating destructive member is destructed due to overheating, the first elastic force is diminished or vanished, which causes the second elastic force to be larger than the first elastic force and forces the movable conductive member to disconnect from current conducting state between the first conductive member and the second conductive member, thereby achieving a protective effect from overheating.

A compact fusible disconnect switch device includes a magnetic arc deflection assembly including pairs of magnets disposed about a mechanical switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC circuitry operating at a voltage well above 125 VDC with reduced arcing intensity and duration. The pairs of magnets may apply magnetic fields in directions opposing one another to deflect electrical arcs in different directions at different locations in the mechanical switch contact assembly to facilitate high voltage DC switching operation.

A compact fusible disconnect switch device includes a magnetic arc deflection assembly including pairs of magnets disposed about a mechanical switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC circuitry operating at a voltage well above 125 VDC with reduced arcing intensity and duration. The pairs of magnets may apply magnetic fields in directions opposing one another to deflect electrical arcs in different directions at different locations in the mechanical switch contact assembly to facilitate high voltage DC switching operation.

A connector bridge for a packaged circuit element is provided. The connector bridge includes a connector bridge body defining a mounting axis. It includes a first plurality of terminal receivers at a first location and a second plurality of terminal receivers at a second location. The pluralities of terminal receivers are arranged closer to a side of the connector bridge body than to the mounting axis to receive and electrically connect with terminals of the packaged circuit element in the first wiring orientation. The connector bridge includes a wiring connector at a third location. The wiring connector extends radially outwards of an outermost perimeter defined by radially outermost sides of the packaged circuit element. The first, second and third locations are at different locations. The wiring connector is electrically connected with the at least first and the second terminal receivers and defines a second wiring orientation.

A fused disconnect switch device includes a housing defining an interior volume, and a current path. An arc interruption assembly is located in the interior volume and includes a shell, and a conductor in electrical communication with the current path. At least one arc plate is located between the magnets and the conductor. The magnets cooperate to generate a magnetic field facilitating an interruption of a first arc between the conductor and the first side of the arc chamber and a second arc between the conductor and the second side of the arc chamber.

A fused disconnect switch device includes a housing defining an interior volume, and a current path. An arc interruption assembly is located in the interior volume and includes a shell, and a conductor in electrical communication with the current path. At least one arc plate is located between the magnets and the conductor. The magnets cooperate to generate a magnetic field facilitating an interruption of a first arc between the conductor and the first side of the arc chamber and a second arc between the conductor and the second side of the arc chamber.

A connector bridge for a packaged circuit element is provided. The connector bridge includes a connector bridge body defining a mounting axis. It includes a first plurality of terminal receivers at a first location and a second plurality of terminal receivers at a second location. The pluralities of terminal receivers are arranged closer to a side of the connector bridge body than to the mounting axis to receive and electrically connect with terminals of the packaged circuit element in the first wiring orientation. The connector bridge includes a wiring connector at a third location. The wiring connector extends radially outwards of an outermost perimeter defined by radially outermost sides of the packaged circuit element. The first, second and third locations are at different locations. The wiring connector is electrically connected with the at least first and the second terminal receivers and defines a second wiring orientation.