Abstract: An electrical switching apparatus includes separable contacts; an operating mechanism structured to open and close the separable contacts; and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes an input structured to receive a remote signal to remotely enable an arc reduction maintenance mode, a first circuit structured to enable the arc reduction maintenance mode in response to the received remote signal, and a second circuit structured to provide an electrical signal remote from the trip mechanism in order to remotely indicate that the arc reduction maintenance mode is remotely enabled.

Abstract: An electrical switching apparatus includes separable contacts; an operating mechanism structured to open and close the separable contacts; and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes an input structured to receive a remote signal to remotely enable an arc reduction maintenance mode, a first circuit structured to enable the arc reduction maintenance mode in response to the received remote signal, and a second circuit structured to provide an electrical signal remote from the trip mechanism in order to remotely indicate that the arc reduction maintenance mode is remotely enabled.

Abstract: A trip actuator assembly is provided for an electrical switching apparatus, such as a circuit breaker. The trip actuator assembly includes a trip actuator with an actuating element, which is movable among unactuated and actuated positions corresponding to separable contacts of the circuit breaker being closeable and tripped opened in response to a trip condition, respectively. The trip actuator is disposed at a mounting portion of a frame. An interface assembly is movably coupled to the frame and includes an interface element disposed between the actuating element of the trip actuator and a portion of the circuit breaker operating mechanism. When the actuating element moves from the unactuated position toward the actuated position, it engages and moves the interface element, thereby moving the operating mechanism to trip open the separable contacts. The frame secures the trip actuator assembly in a desired orientation within a corresponding one of the housing compartments.

Abstract: A sensor assembly is provided for a power bus. The power bus exhibits a number of characteristics, such as a temperature. The sensor assembly includes an enclosure having a housing and a base. At least one sensor such as, for example, a temperature sensor, is housed within the enclosure. The sensor (e.g., temperature sensor) senses a corresponding one of the number of characteristics (e.g., temperature) of the power bus. A power supply is housed within the enclosure, and cooperates with the power bus to provide electrical power to the sensor. An elongated fastener fastens the enclosure to the power bus. The base of the enclosure is adjustable with respect to the housing of the enclosure in order to secure the power bus between the housing and the base. The elongated fastener extends around the enclosure and the power bus in order to secure the enclosure to the power bus.

Abstract: A trip actuator assembly is provided for an electrical switching apparatus, such as a circuit breaker. The trip actuator assembly includes a trip actuator with an actuating element, which is movable among unactuated and actuated positions corresponding to separable contacts of the circuit breaker being closeable and tripped opened in response to a trip condition, respectively. The trip actuator is disposed at a mounting portion of a frame. An interface assembly is movably coupled to the frame and includes an interface element disposed between the actuating element of the trip actuator and a portion of the circuit breaker operating mechanism. When the actuating element moves from the unactuated position toward the actuated position, it engages and moves the interface element, thereby moving the operating mechanism to trip open the separable contacts. The frame secures the trip actuator assembly in a desired orientation within a corresponding one of the housing compartments.

Abstract: A sensor assembly is provided for a power bus. The power bus exhibits a number of characteristics, such as a temperature. The sensor assembly includes an enclosure having a housing and a base. At least one sensor such as, for example, a temperature sensor, is housed within the enclosure. The sensor (e.g., temperature sensor) senses a corresponding one of the number of characteristics (e.g., temperature) of the power bus. A power supply is housed within the enclosure, and cooperates with the power bus to provide electrical power to the sensor. An elongated fastener fastens the enclosure to the power bus. The base of the enclosure is adjustable with respect to the housing of the enclosure in order to secure the power bus between the housing and the base. The elongated fastener extends around the enclosure and the power bus in order to secure the enclosure to the power bus.

Abstract: A shield is provided for a circuit breaker including a printed circuit board (PCB). The PCB is a generally planar member with a plurality of electrical components each having a corresponding shape. The shield includes at least one resilient sheet member at least partially covering the generally planar member and at least one of the electrical components coupled thereto. The resilient sheet member generally conforms to the corresponding shape of the at least one of the electrical components in order to shield and protect it from debris and to resist accumulation of gas-carried carbon. The resilient sheet member is made from a material, such as silicon rubber, which is flexible and elastic within a temperature range of about ?70 to about 450 degrees Fahrenheit, and it is flame-resistant, tear and abrasion-resistant, impervious to moisture and chemicals, fungus-resistant, and resistant to outgassing.

Abstract: A shield is provided for a circuit breaker including a printed circuit board (PCB). The PCB is a generally planar member with a plurality of electrical components each having a corresponding shape. The shield includes at least one resilient sheet member at least partially covering the generally planar member and at least one of the electrical components coupled thereto. The resilient sheet member generally conforms to the corresponding shape of the at least one of the electrical components in order to shield and protect it from debris and to resist accumulation of gas-carried carbon. The resilient sheet member is made from a material, such as silicon rubber, which is flexible and elastic within a temperature range of about ?70 to about 450 degrees Fahrenheit, and it is flame-resistant, tear and abrasion-resistant, impervious to moisture and chemicals, fungus-resistant, and resistant to outgassing.