A connector is provided which has a housing, an actuator, and a plurality of primary terminals. The housing has an insertion passage for insertion of a flat cable from the front end. The actuator has a pressure-applying portion, and an engaging portion pushed upwards by the end portion of the flat cable as the flat cable is being inserted. Each of the primary terminals has an upper beam positioned above the insertion passage. Each upper beam has a contact portion for making contact with the flat cable, and a receiving portion positioned in front of the contact portion and arranged above the pressure-applying portion. The receiving portion makes contact with and is pushed upward by the pressure-applying portion when the engaging portion is pushed upward by the end portion of the flat cable.