Abstract: A trip and reset assembly is provided. The trip and reset assembly includes a trip and reset actuator mounting and a trip and reset actuator. The trip and reset actuator is structured to move the plunger from the first position to the second position. The trip and reset actuator mounting includes a body defining a trip and reset actuator pivot coupling first component. The trip and reset actuator includes an elongated body with a pivot coupling second component, an actuator interface, a trip bar interface and a reset interface. The trip and reset actuator body is movably coupled to the trip and reset actuator mounting and is movable between a first position, wherein the trip bar interface engages the trip bar, and a second position, wherein the actuator interface engages the plunger.

Abstract: A trip and reset assembly is provided. The trip and reset assembly includes a trip and reset actuator mounting and a trip and reset actuator. The trip and reset actuator is structured to move the plunger from the first position to the second position. The trip and reset actuator mounting includes a body defining a trip and reset actuator pivot coupling first component. The trip and reset actuator includes an elongated body with a pivot coupling second component, an actuator interface, a trip bar interface and a reset interface. The trip and reset actuator body is movably coupled to the trip and reset actuator mounting and is movable between a first position, wherein the trip bar interface engages the trip bar, and a second position, wherein the actuator interface engages the plunger.

Abstract: A toroidal current transformer that can be used as a neutral current transformer in a single or three phase system as a result of its compactness is described. The core is made of ferromagnetic material having a primary winding and a secondary winding.

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 circuit breaker includes separable contacts, an operating mechanism structured to open and close the contacts, and a trip unit cooperating with the operating mechanism to trip open the contacts. The trip unit includes a sensor structured to sense current flowing through the contacts, a processor structured to output a trip signal responsive to the sensed current, and a trip actuator. The trip actuator includes a housing including a recess, a coil within the recess, the coil having an opening therethrough, a magnet within the recess, a thermoplastic bushing including a conduit therethrough, the thermoplastic bushing being coupled to the housing, and an armature disposable within the opening of the coil and slidably disposed within the conduit of the thermoplastic bushing. The magnet attracts the armature toward the housing. A spring biases the armature away from the housing, in order to cause the operating mechanism to trip open the contacts.

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 circuit breaker includes separable contacts, an operating mechanism structured to open and close the contacts, and a trip unit cooperating with the operating mechanism to trip open the contacts. The trip unit includes a sensor structured to sense current flowing through the contacts, a processor structured to output a trip signal responsive to the sensed current, and a trip actuator. The trip actuator includes a housing including a recess, a coil within the recess, the coil having an opening therethrough, a magnet within the recess, a thermoplastic bushing including a conduit therethrough, the thermoplastic bushing being coupled to the housing, and an armature disposable within the opening of the coil and slidably disposed within the conduit of the thermoplastic bushing. The magnet attracts the armature toward the housing. A spring biases the armature away from the housing, in order to cause the operating mechanism to trip open the contacts.

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.

Abstract: A circuit breaker includes a housing, a pair of separable contacts within the housing, and an operating mechanism having an operating handle for opening and closing the separable contacts. A micro-switch cooperates with the operating handle and provides a first output when the separable contacts are open and a second output when the separable contacts are closed. A first LED indicator protrudes through the housing and cooperates the first output of the micro-switch. The first LED indicator is illuminated when the separable contacts are open. A second LED indicator protrudes through the housing and cooperates with the second output of the micro-switch. The second LED indicator is illuminated when the separable contacts are closed.

Abstract: A circuit breaker includes a housing, a pair of separable contacts within the housing, and an operating mechanism having an operating handle for opening and closing the separable contacts. A micro-switch cooperates with the operating handle and provides a first output when the separable contacts are open and a second output when the separable contacts are closed. A first LED indicator protrudes through the housing and cooperates the first output of the micro-switch. The first LED indicator is illuminated when the separable contacts are open. A second LED indicator protrudes through the housing and cooperates with the second output of the micro-switch. The second LED indicator is illuminated when the separable contacts are closed.