A plug and socket assembly (100) includes a socket (110) with a receptacle portion (113) configured to receive an electrical plug (105) and an interlock mechanism (130) configured to retain the electrical plug (105) in the receptacle portion (113) when the receptacle portion (113) is rotated about a first axis to a first position. The assembly (100) includes an electrical switch (140) including an actuator (145) operable to energize and de-energize the socket (110). The assembly (100) includes a transfer mechanism (150) having a first mechanical component (310, 410) operable to transfer the rotation of the receptacle portion (113) into motion relative to the first axis that operates the actuator (145). Methods of operating a plug and socket assembly (100) are also provided.

A modular high-current connector (1) has a first housing part (7) and a second housing part (8) connected thereto. The high-current connector (1) has a pin contact (9), the pin contact (9) being substantially cylindrical and having a connection region (A′) and a contact region (K′) for making electrical contact with a device socket or a mating connector. The contact region (K′) of the pin contact (9) projects out of the high-current connector (1) on the plug-in side.

A modular high-current connector (1) has a first housing part (7) and a second housing part (8) connected thereto. The high-current connector (1) has a pin contact (9), the pin contact (9) being substantially cylindrical and having a connection region (A′) and a contact region (K′) for making electrical contact with a device socket or a mating connector. The contact region (K′) of the pin contact (9) projects out of the high-current connector (1) on the plug-in side.

A high-power plug connection system comprises a cable connection housing for connecting at least two electric high-power plug connectors in order to transmit and/or distribute high current strengths and at least two insulating bodies for receiving a respective high-power contact and at least one electrically conductive rail. Longitudinal axes of the high-power contacts are generally arranged on one plane in an offset manner from each other, and the high-power contacts are connected together in an electrically conductive manner by means of an electrically conductive rail, said at least two high-power contacts being provided with a recess into which the electrically conductive rail is at least partly inserted.

A high-power plug connection system comprises a cable connection housing for connecting at least two electric high-power plug connectors in order to transmit and/or distribute high current strengths and at least two insulating bodies for receiving a respective high-power contact and at least one electrically conductive rail. Longitudinal axes of the high-power contacts are generally arranged on one plane in an offset manner from each other, and the high-power contacts are connected together in an electrically conductive manner by means of an electrically conductive rail, said at least two high-power contacts being provided with a recess into which the electrically conductive rail is at least partly inserted.

A connector assembly comprises a connector and a mating connector. The mating connector comprises a mating housing. The mating housing is formed with a release projection. The connector comprises a first housing and a second housing. The first housing is provided with a stopper. The second housing is provided with a stopped portion. One of the first housing and the second housing is provided with a second support portion which supports a supported portion. When the second housing is installed to the first housing, the stopped portion is brought into abutment with the stopper, and a movement of the second housing is regulated by the stopper. When the thus-regulated second housing is received into the mating housing together with the first housing, one of the second support portion and the supported portion is brought into abutment with the release projection so that the regulation of the second housing is released.

A connector assembly comprises a connector and a mating connector. The mating connector comprises a mating housing. The mating housing is formed with a release projection. The connector comprises a first housing and a second housing. The first housing is provided with a stopper. The second housing is provided with a stopped portion. One of the first housing and the second housing is provided with a second support portion which supports a supported portion. When the second housing is installed to the first housing, the stopped portion is brought into abutment with the stopper, and a movement of the second housing is regulated by the stopper. When the thus-regulated second housing is received into the mating housing together with the first housing, one of the second support portion and the supported portion is brought into abutment with the release projection so that the regulation of the second housing is released.

A transformer includes an outer cabinet and an inner tank. The outer cabinet includes a base configured to be installed below ground level, a housing wall configured to be installed at least partially below ground level, and a sill coupled to the housing wall and configured to be installed above ground level. The sill includes a top access opening between an interior space of the outer cabinet and an exterior of the outer cabinet. The inner tank is disposed on the base at least partially below ground level and includes an active part including a transformer circuit. The inner tank includes a plurality of terminals electrically coupled to the active part, each terminal extending from the inner tank into the interior space of the outer cabinet along a respective terminal axis that passes through the top access opening at a respective upward angle with respect to ground level.

A transformer includes an outer cabinet and an inner tank. The outer cabinet includes a base configured to be installed below ground level, a housing wall configured to be installed at least partially below ground level, and a sill coupled to the housing wall and configured to be installed above ground level. The sill includes a top access opening between an interior space of the outer cabinet and an exterior of the outer cabinet. The inner tank is disposed on the base at least partially below ground level and includes an active part including a transformer circuit. The inner tank includes a plurality of terminals electrically coupled to the active part, each terminal extending from the inner tank into the interior space of the outer cabinet along a respective terminal axis that passes through the top access opening at a respective upward angle with respect to ground level.

A tap plug for engaging a conductor lug and a stud is provided. The tap plug includes a housing, a first member, and a second member. The housing has an inner bore defining a longitudinal axis. The first member is in the inner bore and is rotatable with respect to the housing about the longitudinal axis. The first member has an external thread at a first end, where the external thread engages the conductor lug. The second member is rotatable with respect to the housing about the longitudinal axis and has an internal thread at the first end. The first end is open so that the internal thread can engage the stud.