Abstract: A plug assembly for a vehicle-trailer wiring connector assembly includes a plug housing, six connector cavities, and a first and second electrical connectors. The plug housing is positionable in a receptacle assembly. The six connector cavities are defined in and radially disposed around a connecting face of the plug housing in compliance with the Society of Automotive Engineers J2863 standard. The first electrical connector is positioned with respect to a first connector cavity of the cavities. A first contact surface of the first electrical connector is contactable within the first connector cavity. The second electrical connector is positioned with respect to the plug housing. A second contact surface of the second electrical connector is substantially aligned with an outer surface of the plug housing and externally contactable. The second electrical connector is positioned relative to the first electrical connector such that the second electrical connector is electrically insulated therefrom.

Abstract: A receptacle assembly includes a receptacle housing, a housing opening, a first receptacle connector, and a second receptacle connector. The receptacle housing includes a first cavity that extends from a first end to a central structure. The housing opening is defined at the first end. The first cavity and the housing opening are sized and shaped to enable insertion of a plug assembly constructed to comply with the Society of Automotive Engineers J2863 standard. The first receptacle connector includes a first portion that extends from the central structure into the first cavity. The second receptacle connector includes a second portion that extends from the central structure into the first cavity. The first and the second receptacle connectors are sized and are disposed such that they are configured to both be inserted into a single connector cavity of the plug assembly and such that they are electrically insulated from one another.

Abstract: A receptacle assembly for a vehicle-trailer wiring connector assembly includes a receptacle housing, a housing opening, a first receptacle connector, and a second receptacle connector. The receptacle housing includes a first cavity extending from a first end to a central structure. The housing opening is defined at the first end. The first cavity and the housing opening are shaped to enable insertion of a plug assembly constructed to comply with the Society of Automotive Engineers J2863 standard. A first portion of the first receptacle connector extends from the central structure into the first cavity. The first receptacle connector is sized such that the first receptacle connector is configured to be inserted into a connector cavity of the plug assembly. The second receptacle connector is disposed and positioned on an interior surface of the first cavity and is contactable within the first cavity.