An electrical connector including a housing, a plurality of conductive contacts arranged on the housing, an actuator provided to be rotatable for taking up first and second stations selectively and operative to cause each of the conductive contacts to come into press-contact with one of connecting terminals on the flat circuit device inserted into the housing with shifting from the first station to the second station and to release each of the conductive contacts from the press-contact with the connecting terminal with shifting from the second station to the first station, and an engaging member for engaging with the actuator to hold the same so that the actuator is prevented from being removed from the housing and for engaging with the flat circuit device inserted into the housing to hold the same so that the flat circuit device is prevented from getting out of the housing.