Plug assemblies and related kits and techniques for using the same are disclosed herein. In one non-limiting aspect, a plug assembly protects an existing plug of a cord and facilitates replacement of a second plug that is engageable with the existing plug in the event the second plug is damaged. In one embodiment, an assembly includes a first plug member with male and female end portions, and a retaining element configured to engage with the first plug member and at least a portion of a cord that includes a second plug member configured to engage with the first plug member. When the retaining element is engaged with the first plug member, one of the female end portion and the male end portion of the first plug member is accessible for engagement with a third plug member. Additional and/or alternative embodiments, forms, features and aspects are disclosed herein.

Plug assemblies and related kits and techniques for using the same are disclosed herein. In one non-limiting aspect, a plug assembly protects an existing plug of a cord and facilitates replacement of a second plug that is engageable with the existing plug in the event the second plug is damaged. In one embodiment, an assembly includes a first plug member with male and female end portions, and a retaining element configured to engage with the first plug member and at least a portion of a cord that includes a second plug member configured to engage with the first plug member. When the retaining element is engaged with the first plug member, one of the female end portion and the male end portion of the first plug member is accessible for engagement with a third plug member. Additional and/or alternative embodiments, forms, features and aspects are disclosed herein.

A foldable plug device includes a pin module having at least one fixed pin. A first articulating shaft is disposed in a bottom of the pin module, and a first casing and a second casing are disposed at two sides of the pin module. A slot is disposed in a middle portion of the first casing. A movable pin corresponding to the fixed pin is disposed at the second casing, and the movable pin is configured such that the movable pin is located in the slot when the two casings are folded, and the movable pin is turned out of the slot when the two casings are unfolded, to form a plug cooperating with the fixed pins.

An electrical connector includes an insulating housing, a power leg, a ground leg, a power contact and a ground contact. The insulating housing has a peripheral wall. At least two perforations are defined on the peripheral wall. At least two leg recesses are formed on the peripheral wall. The perforations and the leg recesses are staggered along the peripheral wall. The power leg and the ground leg are both received in the peripheral wall of the insulating housing and are both have leg portions being exposed from the leg recesses. The power contact and the ground contact are both located in the perforations. As described above, manufacture material of the electrical connector is saved.

An electrical connector includes an insulating housing, a power leg, a ground leg, a power contact and a ground contact. The insulating housing has a peripheral wall. At least two perforations are defined on the peripheral wall. At least two leg recesses are formed on the peripheral wall. The perforations and the leg recesses are staggered along the peripheral wall. The power leg and the ground leg are both received in the peripheral wall of the insulating housing and are both have leg portions being exposed from the leg recesses. The power contact and the ground contact are both located in the perforations. As described above, manufacture material of the electrical connector is saved.

A power cable connector assembly includes: an electrical connector including an insulative housing, a number of contacts retained in the insulative housing, and an outer case enclosing the insulative housing; a cable electrically connecting with the electrical connector, the cable including a number of core wires connected with corresponding contacts and a number of control wires; and a sensor enclosed by the outer case, the sensor including a number of conductive wires connected with corresponding control wires and a mounting portion, the mounting portion having a through hole for fixing the sensor to the insulative housing.

A power cable connector assembly includes: an electrical connector including an insulative housing, a number of contacts retained in the insulative housing, and an outer case enclosing the insulative housing; a cable electrically connecting with the electrical connector, the cable including a number of core wires connected with corresponding contacts and a number of control wires; and a sensor enclosed by the outer case, the sensor including a number of conductive wires connected with corresponding control wires and a mounting portion, the mounting portion having a through hole for fixing the sensor to the insulative housing.

An electrical connector includes a housing and a conductive contact member disposed in the housing. A first contact portion of the conductive contact member receives a blade contact of an electrical device and a second contact portion electrically engages an inserted electrical wire. A spring member is disposed in the housing and is connected to the contact member. A rotatable member is movable between first and second positions. When the rotatable member is in the second position the spring member secures an inserted wire in electrical engagement with the conductive contact member and prevents removal of the inserted wire. When the rotatable member is in the first position the spring member allows for removal of an inserted wire and allows for insertion of a wire in the housing.

An electrical connector includes a housing and a conductive contact member disposed in the housing. A first contact portion of the conductive contact member receives a blade contact of an electrical device and a second contact portion electrically engages an inserted electrical wire. A spring member is disposed in the housing and is connected to the contact member. A rotatable member is movable between first and second positions. When the rotatable member is in the second position the spring member secures an inserted wire in electrical engagement with the conductive contact member and prevents removal of the inserted wire. When the rotatable member is in the first position the spring member allows for removal of an inserted wire and allows for insertion of a wire in the housing.

A shielded connection line for a magnetic resonance tomography system includes a signal conductor, a shield for the signal conductor, and a plug-in connector. The plug-in connector has a large number of connection contacts that are arranged in a two-dimensional matrix and are electrically insulated from each other in the plug-in connector. The signal conductor is in galvanic contact with a first connection contact, and three second connection contacts adjacent to the first connection contact and surrounding the first connection contact are galvanically connected to the shield.