A pluggable, modular electronic processing component comprises a housing and programmable circuitry. The housing includes a set of conductive terminals that extend therefrom, and each terminal of the set of conductive terminals is sized and spaced to fit into a corresponding terminal socket of a distribution module. The programmable circuitry contained within the housing comprises a processor and a bus interface communicably coupled to the processor. The bus interface interfaces the pluggable, modular electronic processing component to a bus connected to via the distribution module. Further, the bus interface is coupled to a subset of the conductive terminals of the housing. Moreover, the programmable circuitry comprises a configurable input-output (or a set of configurable I/O) that is coupled to a second subset of the conductive terminals of the housing.

A pluggable, modular electronic processing component comprises a housing and programmable circuitry. The housing includes a set of conductive terminals that extend therefrom, and each terminal of the set of conductive terminals is sized and spaced to fit into a corresponding terminal socket of a distribution module. The programmable circuitry contained within the housing comprises a processor and a bus interface communicably coupled to the processor. The bus interface interfaces the pluggable, modular electronic processing component to a bus connected to via the distribution module. Further, the bus interface is coupled to a subset of the conductive terminals of the housing. Moreover, the programmable circuitry comprises a configurable input-output (or a set of configurable I/O) that is coupled to a second subset of the conductive terminals of the housing.

A relay terminal includes an upper conductive and lower conductive plate, each having a plate surface intersecting with the Y direction, and a coupling part that couples the upper conductive plate and the lower conductive plate to each other. The coupling part is provided on one end in the Z direction of a combination of the upper conductive plate and the lower conductive plate, such that the coupling part connects both to a middle portion in the X direction of the upper conductive plate and to a middle portion in the X direction of the lower conductive plate. First and second pairs of contact parts are formed on the plate surfaces in end sides in the X direction of the upper and lower conductive plates, each contact part having a curved surface.

A relay terminal includes an upper conductive and lower conductive plate, each having a plate surface intersecting with the Y direction, and a coupling part that couples the upper conductive plate and the lower conductive plate to each other. The coupling part is provided on one end in the Z direction of a combination of the upper conductive plate and the lower conductive plate, such that the coupling part connects both to a middle portion in the X direction of the upper conductive plate and to a middle portion in the X direction of the lower conductive plate. First and second pairs of contact parts are formed on the plate surfaces in end sides in the X direction of the upper and lower conductive plates, each contact part having a curved surface.

Provided is an electrical junction box in which a relay can be easily installed. The electrical junction box includes: a container; a relay that is installed on an outer surface of the container; a busbar that protrudes from the outer surface of the container, and is connected to the relay; and a support wall that protrudes from the outer surface of the container, is provided opposite to the busbar, and supports the relay. The relay is interposed between the busbar and the support wall, and the busbar has a guide portion configured to guide insertion of the relay between the busbar and the support wall.

Provided is an electrical junction box in which a relay can be easily installed. The electrical junction box includes: a container; a relay that is installed on an outer surface of the container; a busbar that protrudes from the outer surface of the container, and is connected to the relay; and a support wall that protrudes from the outer surface of the container, is provided opposite to the busbar, and supports the relay. The relay is interposed between the busbar and the support wall, and the busbar has a guide portion configured to guide insertion of the relay between the busbar and the support wall.

A first terminal housing chamber of a terminal body includes a first elastic contact part that contacts the first counterpart terminal while imparting resilient force in a direction orthogonal to an insertion direction of the first counterpart terminal, and gaps with respect to the first counterpart terminal in a direction orthogonal to the insertion direction of the first counterpart terminal and the resilient force imparting direction of the first elastic contact part. A second terminal housing chamber of the terminal body includes a second elastic contact part that contacts the second counterpart terminal while imparting resilient force in a direction orthogonal to an insertion direction of the second counterpart terminal, and gaps with respect to the second counterpart terminal in a direction orthogonal to the insertion direction of the second counterpart terminal and the resilient force imparting direction of the second elastic contact part.

A relay device includes: a first contact and a second contact; a driving mechanism; a first conductor; a second conductor; and a static relay and an electric heating element. The driving mechanism is configured to cause the first contact and the second contact to be close to each other or separated from each other. The first conductor is electrically coupled to the first contact. The second conductor is electrically coupled to the second contact. The static relay and an electric heating element are coupled between the first conductor and the second conductor. The electric heating element is disposed to allow heating of one or both of the first contact and the second contact.

A relay device includes: a first contact and a second contact; a driving mechanism; a first conductor; a second conductor; and a static relay and an electric heating element. The driving mechanism is configured to cause the first contact and the second contact to be close to each other or separated from each other. The first conductor is electrically coupled to the first contact. The second conductor is electrically coupled to the second contact. The static relay and an electric heating element are coupled between the first conductor and the second conductor. The electric heating element is disposed to allow heating of one or both of the first contact and the second contact.

A device for protecting an inverter include a first power switch configured to be turned on when a first voltage signal from a first switch of a safety relay is applied thereto; a second power switch connected in series with the first power switch, wherein the second power switch is configured to be turned on when a second voltage signal from a second switch of a safety relay is applied thereto; and a power line for connecting the first power switch and the second power switch to each other in series and for connecting the series of the first power switch and the second power switch to a buffer of the inverter, wherein a third voltage signal is applied via the power line to the buffer.