A terminal block includes a casing, a terminal portion and an SD switch. The casing is provided to an electrical device. The terminal portion is provided on the casing and has a terminal cover that is fitted to a base for accommodating terminals. The SD switch is provided to the casing, and has a female connector and a lever portion that is fitted to the female connector to mechanical connect and disconnect from the electrical device. The lever portion constitutes an interlocking portion that restricts a disengaging operation of the terminal cover, when the lever portion is fitted to the female connector.

A terminal block includes a casing, a terminal portion and an SD switch. The casing is provided to an electrical device. The terminal portion is provided on the casing and has a terminal cover that is fitted to a base for accommodating terminals. The SD switch is provided to the casing, and has a female connector and a lever portion that is fitted to the female connector to mechanical connect and disconnect from the electrical device. The lever portion constitutes an interlocking portion that restricts a disengaging operation of the terminal cover, when the lever portion is fitted to the female connector.

A charging surface comprising multiple conductive regions can be used to charge an electronic device placed on it the surface so that electrodes on the device engage respective conductive regions of the surface. In order to distinguish such chargeable devices from short circuits and other spurious connections, the coupling interface associated with the charging surface is controlled so as to establish a text voltage across each pair of conductive regions in sequence, and look for pairs of conductive region demonstrating a voltage drop characteristic of a particular class of device. Relationships between every pair of conductive regions can be determined and recording, and the voltage level supplied to each conductive region set accordingly. The coupling interface may furthermore operate to identify device classes, and to set supply voltages or establish additional connections on the basis of stored device class information. Discrimination on the basis of voltage drop can be enhanced by the provision of a coupling adapted associated with a device to be detected, where the coupling adapter demonstrates an anti-inversion characteristic, for example implemented with a MOSFET, across at least a pair of these electrodes.

A power extension cord socket includes a first socket device and a control device. The first socket device has plural AC power sockets and AC power switches, and each AC power socket is provided for plugging an external load to forward mains electricity, and each AC power switch is connected to the respective AC power socket for controlling the open circuit or closed circuit of the AC power socket. The control device is coupled to the mains electricity and electrically connected to the first socket device. The control device has a leakage detection processor and a leakage power-off switch and uses the leakage detection processor to detect a current usage status of the first socket device, and turns on the leakage power-off switch in an abnormal status to stop each AC power socket from forwarding the mains electricity to the load.

An electrical control system which controls an electrical device from two or more locations with independent control function, the system including a wall adapter having a first integrated circuit board, a first enclosure, and a second enclosure. The first enclosure includes a first push button, a first synchronizing push button, and a second IC board electrically connected to the wall adapter; and the second enclosure includes a second push button, a second synchronizing push button, and a third IC board. Each of the wall switch, the first synchronizing push button, and the second synchronizing push button is a system power control button and part of a synchronizing circuit that synchronizes the electrical control system to default system power controls upon being pressed by a user. Each of the first and second push buttons is a local button that controls a respective controlled receptable of a respective enclosure.

An electrical control system which controls an electrical device from two or more locations with independent control function, the system including a wall adapter having a first integrated circuit board, a first enclosure, and a second enclosure. The first enclosure includes a first push button, a first synchronizing push button, and a second IC board electrically connected to the wall adapter; and the second enclosure includes a second push button, a second synchronizing push button, and a third IC board. Each of the wall switch, the first synchronizing push button, and the second synchronizing push button is a system power control button and part of a synchronizing circuit that synchronizes the electrical control system to default system power controls upon being pressed by a user. Each of the first and second push buttons is a local button that controls a respective controlled receptable of a respective enclosure.

An unauthorized connection detecting device to detect an unauthorized device connection at a connection part at which an electronic control unit mounted on a vehicle and an input and output unit are connected to each other is provided. The unauthorized connection detecting device includes a pair of connectors having one connector mounted on the electronic control unit and another connector mounted on the input and output unit, the pair of connectors being to be attached to each other, a protrusion or a conductor pattern formed on the another connector, a switch unit arranged on the one connector and to detect the protrusion or a conductor connection detecting unit arranged on the one connector and to be electrically connected to the conductor pattern, and an unauthorized connection identification unit to detect an unauthorized connection based on a state detected by the switch unit or the conductor connection detecting unit.

A wiring device including a first printed circuit board (PCB) that includes a first direct current (DC) output port and a second DC output port. The wiring device further includes a second PCB electrically connected with the first PCB, the second PCB including a planar transformer integrated with a surface of the second PCB and configured to output power at one or more DC voltage levels, a switch connected to the planar transformer, and a microcontroller. The microcontroller includes an electronic processor and is configured to control delivery of power from the planar transformer to at least one of the first DC output port and the second DC output port using the switch. The switch may have a Gallium Nitride (GaN) chemistry or a Silicon Carbide (SiC) chemistry.

A wiring device including a first printed circuit board (PCB) that includes a first direct current (DC) output port and a second DC output port. The wiring device further includes a second PCB electrically connected with the first PCB, the second PCB including a planar transformer integrated with a surface of the second PCB and configured to output power at one or more DC voltage levels, a switch connected to the planar transformer, and a microcontroller. The microcontroller includes an electronic processor and is configured to control delivery of power from the planar transformer to at least one of the first DC output port and the second DC output port using the switch. The switch may have a Gallium Nitride (GaN) chemistry or a Silicon Carbide (SiC) chemistry.

A switchable subsea connector includes a first connector part, a second connector part removably connected to the first connector part; and a switching unit. The connector parts each include at least one electrical conductor and each switching unit includes at least one individual switching device. Each electrical conductor in at least one connector part is allocated to an individual switching device of the switching unit; wherein each of the individual switching devices includes a micro-electro-mechanical systems (MEMS) switch.