An electrical plug connector for connection of an electrical cable (2) to an apparatus, such as a sensor or an actuator, includes a housing (3) having a contact mount (5) holding a variety of contacts (4), and an electronics circuit (6) having at least one light-emitting element, LED (7) and being electrically connected to the contacts (4). The status of whether the LED (7) is illuminated or not can be identified particularly well, even in the presence of strong external incident light, by the housing (3) being composed of a thermoplastic material, at least in the area of the LEDs (7), and including an additive (8) that influences transparency and color for reducing the transparency of the thermoplastic material.