An electrical connector includes a connector body (2) having a top wall (220), a bottom wall (222). A terminal (1) has a base section (15) within the body to be moveable longitudinally relative to the body. A pair of spaced retention elements (18) is disposed longitudinally from the base section, and each adjacent the top wall or bottom wall. The retention elements are moveable together with the base section such that when the contact is moved downwards to be at a first position, one of the retention elements is urged to engage on the top wall, and when the contact is moved upwards to be at a second position, the other retention element is urged to engage on the bottom wall, thereby preventing the terminal from being removed during the longitudinal movement of the terminal relative to the body.