The present invention is directed to an electrical wiring device including a housing assembly with a cover assembly, a back body member, and a plurality of line terminals, feed-through load terminals, and receptacle load terminals; a fault protection circuit disposed in the back body and substantially disposed on at least one printed circuit board, and being configured to provide a fault detection stimulus in response to detecting at least one type of predetermined fault condition, the fault detection stimulus decoupling a reset pin from a latching element, the reset pin being coupled to the latching element in response to a reset stimulus; and a circuit interrupter disposed inside the housing including a latch block assembly with an upper latch block and being moveable between a first state in response to the reset stimulus and a second state in response to the fault detection stimulus, wherein the reset pin is positioned through the upper latch block, and the upper latch block is configured to drive the circuit interrupter only in a single direction to decouple the plurality of terminals to the second state.

The present invention is directed to an electrical wiring system having a frame assembly that includes a frame opening at a central portion thereof. The frame opening provides access to the interior of the device wall box. At least one electrical wiring device is configured to snap into the frame opening such that the interior of the device wall box is completely enclosed by the frame assembly and the at least one electrical wiring device such that access to wiring disposed within the device wall box is substantially prevented. The at least one electrical wiring device includes at least one user-interface. An aesthetic overlay may be coupled to the frame assembly. The aesthetic overlay includes an overlay opening configured to accommodate the at least one user-interface such that the at least one user-interface is accessible to a user.

The present invention is directed to an electrical wiring system having a frame assembly that includes a frame opening at a central portion thereof. The frame opening provides access to the interior of the device wall box. At least one electrical wiring device is configured to snap into the frame opening such that the interior of the device wall box is completely enclosed by the frame assembly and the at least one electrical wiring device such that access to wiring disposed within the device wall box is substantially prevented. The at least one electrical wiring device includes at least one user-interface. An aesthetic overlay may be coupled to the frame assembly. The aesthetic overlay includes an overlay opening configured to accommodate the at least one user-interface such that the at least one user-interface is accessible to a user.

An emergency stop device including a control assembly which can be actuated in translation along a control axis between a released position and an actuated position, a locking element cooperating with the control assembly and able to assume a locking position to hold the control assembly in its actuated position, a read device configured to generate a command for authorising unlocking of the control assembly, an unlocking actuator configured to act on the locking device to release the control assembly from its actuated position, an actuating element which can be actuated in movement to generate a mechanical energy, and an energy generator configured to convert the mechanical energy supplied by a movement of the actuating element into an electrical energy intended to power the read device.

The present subject matter provides a relay, including an insulating cover, two static contact bridges, a moving contact bridge, a drive shaft and a driving mechanism; a conductive layer is provided on the inner surface of the top of the insulating cover; the relay comprises an auxiliary conduction structure and an auxiliary detection structure; the auxiliary conduction structure includes a conductive member and an elastic member that elastically supports the conductive member below; the conductive member is arranged on the drive shaft, the drive shaft moves up to drive the moving contact bridge to be conducted with the static contact bridges, and the conductive member is conducted with the conductive layer; the drive shaft moves down to drive the moving contact bridge to be disconnected from the static contact bridges, and the conductive member is disconnected from the conductive layer; the auxiliary detection structure comprises a first auxiliary terminal and a second auxiliary terminal; the first auxiliary terminal is electrically connected to the conductive layer; and the second auxiliary terminal is electrically connected to the conductive member.

The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.

The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.

A system for sequentially interconnecting battery modules of a battery pack is disclosed. The battery pack may comprise first, second and third battery modules. Each of the first, second and third battery modules includes a first power output terminal and a second power output terminal. Each of the first power output terminals is of a first polarity and the each of the second power output terminals is of a second, opposite polarity. The system comprises a control module for providing a control signal to sequentially interconnect the battery modules, a first interconnect controller electrically disposed between the first and second battery modules, and a second interconnect controller electrically disposed between the second and third battery modules. Each of the first and second interconnect controllers includes a contactor comprising a main contact, an auxiliary contact and an actuating coil for closing the respective main contact and auxiliary contact. The actuating coil of the first interconnect controller responds to the control signal to close the respective main contact, coupling the first battery module to the second battery module, and to close the respective auxiliary contact to pass the control signal to the second interconnect controller. The actuating coil of the second interconnect controller responds to the passed control signal from the first interconnect controller to close the respective main contact of the second interconnect controller, coupling the third battery module to the previously connected first and second battery modules.

A system for sequentially interconnecting battery modules of a battery pack is disclosed. The battery pack may comprise first, second and third battery modules. Each of the first, second and third battery modules includes a first power output terminal and a second power output terminal. Each of the first power output terminals is of a first polarity and the each of the second power output terminals is of a second, opposite polarity. The system comprises a control module for providing a control signal to sequentially interconnect the battery modules, a first interconnect controller electrically disposed between the first and second battery modules, and a second interconnect controller electrically disposed between the second and third battery modules. Each of the first and second interconnect controllers includes a contactor comprising a main contact, an auxiliary contact and an actuating coil for closing the respective main contact and auxiliary contact. The actuating coil of the first interconnect controller responds to the control signal to close the respective main contact, coupling the first battery module to the second battery module, and to close the respective auxiliary contact to pass the control signal to the second interconnect controller. The actuating coil of the second interconnect controller responds to the passed control signal from the first interconnect controller to close the respective main contact of the second interconnect controller, coupling the third battery module to the previously connected first and second battery modules.

For providing a very simple and reliable monitoring of the functionality of contacts together with a high flexibility of selection of the contacts a method for monitoring the functionality of redundantly interconnected contacts is provided, preferably within a load current circuit, wherein said n contacts, n=2, provide an electrical connection between a power supply and a load, wherein said n contacts are switchable by a controller and wherein each of said n contacts is designed for providing the electrical connection between the power supply and the load all alone. The method is characterized in that the controller switches on said n contacts during n subsequent activations according to a defined schedule according to which at the first of said n subsequent activations one of said n contacts is switched on first and the remaining n1 contacts are switched on afterwards, so that a verification regarding the functionality of said one of said n contacts is possible, and according to which at each of the n1 remaining subsequent activations a further one of said n contacts is switched on first with switching on of the remaining n1 contacts afterwards, so that after said n subsequent activations each of said n contacts has once been switched on first and a verification regarding the functionality of each of said n contacts is possible. Further, a corresponding method for subsequent deactivations and corresponding apparatuses are provided.