Abstract: The invention relates to a hermaphrodite electrical connector providing safe electric power supply wiring without any risk of accidental disconnection. The connector (1) comprises a female contact part (3) provided with a contact socket (6), a male contact part (4) provided with a contact pin (8) and an insulating case (2) surrounding said parts. At the front, the case comprises a male tubular section (5) around the socket (6) and a female tubular section (7) around the pin (8). Said tubular sections are engageable in and on the corresponding sections of another similar connector and comprise locking members (10, 13). A plurality of said connectors (1) may be juxtaposed and mechanically and electrically connected by metal pins 17 in order to form a distribution block (21, 22). Such a connector may be used in electric power supply networks of very low voltage (12 V), low voltage (11, 220 V) or higher voltage.