A power connector for a printed circuit, the connector comprising: an insulating socket (14) provided with a bearing face (15) bearing on the printed circuit, and with a housing (16) associated with an opening (17) disposed laterally; a pin (18, 19) passing through the bearing face perpendicularly thereto and having a connection portion (22, 27) which extends projecting into the housing and presents two faces (23, 28) parallel to a plane perpendicular to the opening; an insulating support (31) arranged to be inserted at least in part in the housing through the opening; and at least one plug (34) secured to the insulating support and provided with two flexible tabs (35) for pressing against the faces of the connection portion of the pin.