Junction boxes are disclosed relating to commercial and residential wiring that include a container and multiple push in locking electrical connectors. The push in locking electrical connectors are arranged facing the exterior of the box such that the box is operable without being opened and such that the individual conductors of multiconductor wires may be conveniently wired to separate sets of push in locking electrical connectors electrically joining the multiconductor wires.

An offshore power distribution system includes first cables each having a first dry mate connection at a first end and each connecting to an offshore power generator unit at a second end, a subsea junction box at a sea floor, a second cable extending from the junction box to a subsea transformer station at the sea floor and connecting with the transformer station, and a third cable extending from the transformer station to an onshore receiver. Each first dry mate connection terminates in the junction box. The second cable has a second dry mate connection at an end thereof. The second dry mate connection terminates inside the junction box and is operatively connected to each first dry mate connection. The power distribution system is configured to transmit electric power from the power generator unit, via the first cables, the second cable, and the third cable, to the receiver.

An offshore power distribution system includes first cables each having a first dry mate connection at a first end and each connecting to an offshore power generator unit at a second end, a subsea junction box at a sea floor, a second cable extending from the junction box to a subsea transformer station at the sea floor and connecting with the transformer station, and a third cable extending from the transformer station to an onshore receiver. Each first dry mate connection terminates in the junction box. The second cable has a second dry mate connection at an end thereof. The second dry mate connection terminates inside the junction box and is operatively connected to each first dry mate connection. The power distribution system is configured to transmit electric power from the power generator unit, via the first cables, the second cable, and the third cable, to the receiver.

Provided is an electrical connection box capable of being installed in a vehicle, including a terminal block; a bus bar provided on the terminal block; and a housing that covers at least a portion of the terminal block and into which a plurality of electrical wires configured to be connected to the bus bar are inserted, wherein the terminal block is provided with a plurality of guide walls that guide the plurality of electrical wires toward the bus bar; the plurality of guide walls are disposed side by side extending from the housing side toward the bus bar side; and a distance from any one guide wall to an other guide wall on the bus bar side is greater than a distance from the any one guide wall to the other guide wall on the housing side.

Provided is an electrical connection box capable of being installed in a vehicle, including a terminal block; a bus bar provided on the terminal block; and a housing that covers at least a portion of the terminal block and into which a plurality of electrical wires configured to be connected to the bus bar are inserted, wherein the terminal block is provided with a plurality of guide walls that guide the plurality of electrical wires toward the bus bar; the plurality of guide walls are disposed side by side extending from the housing side toward the bus bar side; and a distance from any one guide wall to an other guide wall on the bus bar side is greater than a distance from the any one guide wall to the other guide wall on the housing side.

An in-vehicle electrical component circuit unit : includes an electrically insulative holding body configured to hold a circuit member ;a plate wall portion configured to cover a casing through hole provided in an in-vehicle electrical component ; a connector including a connection member that is held by the plate wall portion ; and a sealing member (126) that is provided on a first surface , which is a surface of the plate wall portion that is to be attached to the casing (132), and is configured to come into contact with a peripheral edge of the casing through hole , wherein a portion of the connection member that protrudes on a first surface side includes a circuit-side connection portion (120), the circuit-side connection portion is detachably connectable to the circuit member , and the circuit-side connection portion is inserted into the casing through hole from outside the casing and connected to the circuit member

Provided is a circuit assembly with a novel structure that can quickly reduce heat generation at a connection portion of a heat generating component. A circuit assembly includes a heat generating component that generates heat when energized; a energization member that connects to a connection portion of the heat generating component; a fastening member that fastens the energization member to the connection portion; and a heat capacity increasing component that thermally connects to a fastening site of the energization member and the connection portion and increases a heat capacity of the connection portion of the heat generating component.

Provided is an electric connection box with which the workability of assembly work can be enhanced and the occurrence of problems attributable to forgetting to close a cover can be prevented. A vehicular electric connection box includes: a housing having a connecting portion including a terminal connected to an external bus bar; and a cover member opening and closing the connecting portion, in which the cover member has a lid portion exposing or shielding the terminal with the cover member closed.

Provided is an electric connection box with which the workability of assembly work can be enhanced and the occurrence of problems attributable to forgetting to close a cover can be prevented. A vehicular electric connection box includes: a housing having a connecting portion including a terminal connected to an external bus bar; and a cover member opening and closing the connecting portion, in which the cover member has a lid portion exposing or shielding the terminal with the cover member closed.

A tap-off box includes a latch that automatically secures the tap-off box to a busway upon insertion of a mast into the busway. The latch is in the form of a single spring-loaded member that latches onto a rail as the masthead is pushed into the busway. A push button actuated camming member pushes the latch away from the rail to enable the masthead to be withdrawn from the busway. The push button and camming member are independent of the mechanism that extends and retracts the contacts while the masthead is inserted and latched into the busway. The tap-off box may also include non-contact current monitoring sensors with voltage sensing inserts that an auxiliary breaker switch in applications other than a tap-off box, and an infrared emitting faceplate that can be adapted for monitoring a variety of breakers from outside the tap-off box.