A trip cam is for an operating handle assembly of an electrical switching apparatus. The electrical switching apparatus includes a housing and a number of poles. The operating handle assembly has an operating handle partially extending into the housing. The trip cam includes a mounting portion structured to be disposed in the housing, and an operating handle protrusion extending from the mounting portion and being structured to engage the operating handle.

A pole shaft catch assembly is for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a pole shaft pivotably coupled to the housing and a yoke assembly coupled to the pole shaft. The pole shaft catch assembly includes a catch arm. The catch arm moves between an engaged position in which the catch arm engages the yoke assembly to restrict movement of the yoke assembly and the pole shaft, and a disengaged position in which the catch arm disengages the yoke assembly. A biasing element biases the catch arm toward the disengaged position. A trigger translates movement of the yoke assembly into movement of the catch arm.

A trip cam is for an operating handle assembly of an electrical switching apparatus. The electrical switching apparatus includes a housing and a number of poles. The operating handle assembly includes an operating handle partially extending into the housing and a cradle member cooperating with the operating handle. The trip cam includes: a mounting portion structured to be disposed in the housing, the mounting portion including a first region, a second region disposed generally opposite the first region, and a third region disposed generally between the first region and the second region; a transfer leg extending from the first region and being structured to cooperate with each of the number of poles; a driving leg extending from the third region and being structured to be driven by the cradle member; and an operating handle protrusion extending from the second region and being structured to engage the operating handle.

A pole shaft catch assembly is for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a pole shaft pivotably coupled to the housing and a yoke assembly coupled to the pole shaft. The pole shaft catch assembly includes a catch arm. The catch arm moves between an engaged position in which the catch arm engages the yoke assembly to restrict movement of the yoke assembly and the pole shaft, and a disengaged position in which the catch arm disengages the yoke assembly. A biasing element biases the catch arm toward the disengaged position. A trigger translates movement of the yoke assembly into movement of the catch arm.

A trip assembly is for an electrical switching apparatus. The electrical switching apparatus includes a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a poleshaft and a trip D-shaft. The trip assembly comprises: a yoke assembly comprising a yoke member and a trip pin coupled to the yoke member, the yoke member being structured to be coupled to the poleshaft; and a link assembly comprising a linking member, the linking member being structured to cooperate with each of the trip pin and the trip D-shaft. When the yoke member moves in response to a trip condition, the linking member is structured to transmit movement of the yoke member into movement of the trip D-shaft.

Embodiments of the present technology include a circuit breaker with a tripping mechanism. The tripping mechanism includes a latch and a latch lever, according to some embodiments. The latch lever may be coupled to a toggle via a joint arm in some embodiments. The latch lever may also be coupled to a change lever via a buckled shackle. In some embodiments, the buckled shackle includes a first section, a second section, and a bend between the first section and the second section.

A device may include a housing including a face plate. A device may include a plurality of sensing cores each configured to receive a current flow through a center cavity, the current flow defining a current flow direction through the center cavity, wherein the current flow direction is parallel to the face plate.

An operating mechanism of a circuit breaker, wherein two ends of a first spring are rotationally connected to a rocker arm assembly and a first crank through a first spring shaft and a second spring shaft respectively, and one end of a jump buckle is rotationally connected to a bracket and is a jump buckle pivoting end; a jump buckle hole of the jump buckle is aligned with a bracket hole of the bracket; the first spring shaft is in limiting fit with the jump buckle; and one end of the first crank swings in a direction away from the jump buckle pivoting end, such that a spacing between the first spring shaft and the second spring shaft is smaller than or equal to the length of the first spring, and a first assembly state is formed.

The present disclosure relates to a circuit breaker having an energy releasing mechanism of an opening/closing mechanism part, and a circuit breaker according to an embodiment of the present invention comprises: an input latch locking device rotatably formed to restrict or release an input latch according to rotating angles thereof; an interlock movement rail which is installed on a cradle and in which an inspection position, a preparation position, and a driving position are configured; an interlock member for operating at least one among the input latch and a trip latch in a section excluding the inspection position, the preparation position, and the driving position while vertically moving in association with a relative movement of the interlock movement rail; and at least one link member connected between the interlock member and the input latch locking device and switching a linear movement in a vertical direction of the interlock member to a rotation movement, thereby rotating the input latch locking device.

A reset plunger may include a reset plunger having an intermediate collar and an armature that is axially movable along a length of the reset plunger, wherein the armature contains a slanted projection feature configured to engage with a latching mechanism, wherein the latching mechanism includes a cam surface coupled to a lifting plate; and wherein the lifting plate included a latching portion configured to engage the reset plunger during resetting of the electrical outlet.