A resettable cutout sectionalizer uses a modified trunnion member including a bridge and a modified cutout hinge including at least one blocking flange. One actuated, the spring-loaded sectionalizer latching pin actuates to free the sectionalizer which is rotated open by the rotation of the trunnion. The trunnion rotates open and then is blocked from further rotation in a first direction by the bridge contacting the blocking flange(s) of the cutout hinge. To reset the device, the sectionalizer body is rotated against the blocking flange which causes the latching flange of the trunnion to cam against the latching pin to overcome the spring bias and push it back into the reset position.

The circuit breaker is fabricated by an assembly step that makes a circuit breaker assembly with a moving contact metal plate, stationary contact metal plate, and bimetallic strip disposed in prescribed locations in an external case; and an anneal step that introduces the circuit breaker assembly made in the assembly step into an anneal oven, heats the circuit breaker assembly in the anneal oven and then cools it to anneal both the moving contact metal plate and the bimetallic strip and produce a heat-treated circuit breaker.

The present disclosure relates to a circuit breaker. The circuit breaker includes a case having an accommodation space inside, an upper busbar and a lower busbar partially accommodated in an upper portion and a lower portion of the case, respectively, a fixed contact provided in the case and connected to the upper busbar, a movable contact hinge-coupled to the lower busbar and fixed to the case via the first elastic member capable of pivoting in one direction, wherein the movable contact performs a trip operation by being released from the fixed contact, a power transfer part connected to one side of the movable contact to cross each other, and transferring a rotation force to the movable contact, and a trip part arranged under a rear end of the power transfer part and pressing the power transfer part upward when current over a certain amount is applied to the inside.

An electrical wiring device including: a housing, a plurality of terminals electrically connected to a contact structure including a conductive member having at least one contact, wherein in response to a make-force each contact structure is configured to perform a first movement to electrically connect each of the contacts on each contact structure to one of the contacts on a different one of the fixed contact structures in the reset state, thereby electrically connecting the terminals in the reset state; a circuit interrupting assembly being configured to perform a first linear movement in response to a break-force in order to cause each contact structure to perform a second movement in a direction opposite the first movement to decouple each of the contacts on each contact structure from one of the contacts on a different one of the fixed contact structures thereby decoupling the terminals to effect a tripped state; a protective electrical assembly, and a latching element configured to restrain the circuit interrupting assembly in a reset state and to disengage the circuit interrupting assembly in a tripped state, the latching element positioned to impart and angular force on a catch pin.

This breaker panel comprises a plurality of circuit breakers, each circuit breaker having a head comprising a frustroconical seal made of an elastomer, this frustroconical seal having a first frustroconical face; and a conic frustum made of a material that is harder than the material of the frustroconical seal, this conic frustum having a second frustroconical face;
in which: the distance, in a plug-in direction, between an upper edge of the first frustroconical face and the shoulder is at least two times smaller than the distance, in the plug-in direction, between the upper and lower edges of the second frustroconical face; and the upper edge of the first frustroconical face is set back, towards the interior of the circuit breaker, relative to the lower edge of the second frustroconical face.

A carrier shaft with a modular structure for an electromechanical switching device of an embodiment includes at least one first carrier module, at least one second carrier module and at least one connecting module, arranged in a torsion-inhibiting manner between the at least one first carrier module and the at least one second carrier module. The connecting module includes a main body and at least one connecting device and the connecting device are arranged in the main body, the at least one first carrier module and the at least one second carrier module. Another embodiment relates to an electromechanical switching device with the carrier shaft.

A sensing assembly is for an electrical switching apparatus. The electrical switching apparatus includes a base having a pocket portion, and a bus bar coupled to the base. The sensing assembly includes a housing structured to be coupled to the pocket portion, a power harvester coupled to the housing, a current sensor coupled to the housing, and a voltage sensing circuit located internal with respect to the housing and being structured to be electrically connected to the bus bar.

A sensing assembly is for an electrical switching apparatus. The electrical switching apparatus includes a base having a pocket portion, and a bus bar coupled to the base. The sensing assembly includes a housing structured to be coupled to the pocket portion, a power harvester coupled to the housing, a current sensor coupled to the housing, and a voltage sensing circuit located internal with respect to the housing and being structured to be electrically connected to the bus bar.

In one example, a hybrid circuit interrupter may include a three-coil architecture, first coil circuitry, leakage detection circuitry, and a main processing circuit including a processor. The three-coil architecture may include a coil housing, three coils, and a plurality of coil assembly conductors. The coils may be disposed within the coil housing. The coil assembly conductors may be at least partially disposed within the coil housing. The first coil circuitry may be connected to the first coil and may generate first coil signals. The leakage detection circuitry may be connected to the other two coils and may generate a leakage signal. The processor may receive the first coil signals, receive the leakage signal, determine whether an arc fault exists based on the first coil signals, determine whether a ground fault exists based on the leakage signal, and generate a first trigger signal if a fault is determined to exist.

An electrical device includes a case defining an interior space. The case includes a sidewall and a cover. The sidewall defines an opening therethrough to provide access to the interior space. The electrical device also includes a power connector coupled to the case and disposed at least partially within the interior space. The power connector is coupleable to a cable extending through the opening into the interior space of the case. The electrical device further includes a shield removably coupleable to the case. The shield includes an engagement feature and a wall. The engagement feature is arranged to engage the case. The wall is arranged to at least partially cover the opening when the shield is coupled to the case such that the wall and the cable are spaced apart a distance that is less than a width of the opening when the cable is coupled to the power connector.