Hybrid plug connectors are provided for connecting different electronic modules to insulators arranged in an outer casing and for receiving a power conductor transmitting a power supply and a shielded data conductor for data transmission for transmitting signals/data of an industrial bus, such as ISA, ethernet or similar, wherein the power conductor has at least two power lines and the data conductor has at least one data line, wherein the power lines and the data lines are guided in contact parts designed as plugs or sockets and can be coupled via these contacts parts, and wherein the outer casings of the pair-type hybrid plug connectors can be joined inside one another for interlocking coupling. The insulator arranged in each of the plug connectors can be arranged in a shield housing as a contact carrier receiving arrangement, the shield housing accommodating a contact carrier, which carries forward the data line(s) designed as plug sockets or plug pins in a shielded manner in the plug connector, and wherein the coupleable contacts form a shape-encoded interlocking connection in the plugged-in state of the connection.