An electrical connector provides for repeatable sealed termination of electrical conductors. The connector includes an insulative connector housing (16) supporting therein an insulation displacing contact (28). The contact permits insertable and removable insulation displacing engagement with an insulated conductor (12). A sealing material (34) is disposed within the housing around the contact (28) for sealing the engagement of the contact with the conductor. The sealing material (34) is displaceable upon insertable engagement of the conductor (12) with the contact. The connector further includes a plunger (44) supported adjacent the contact. The plunger is compressible in response to the insertable engagement of the conductor with the contact and returnable to an uncompressed condition upon removal of the conductor for returning the displaced sealing material to its original position.