An electrical connector assembly including a connector member; a housing having a general tube shape; wedges and an extension spring member. The housing includes a front end and a rear end. The front end of the housing is adapted to be fixedly connected with the connector member. The wedges are adapted to be located in the housing directly between the housing and a core member of a cable conductor. The connector member is adapted to push the wedges into the housing as the connector member and the housing are being connected with each other. The extension spring member surrounds the wedges to bias the wedges towards a center channel formed by the wedges.