An access cover for a receptacle fitting includes a cover plate connectable to the fitting at a location overlying a receptacle carried by the fitting. An access door includes a first portion slidably connected to the cover plate for movement between open and closed positions. The access door also includes a second portion having a first end pivotally connected to the access door first portion. The second end of the door second portion pivots to a first position overlying the receptacle in response to movement of the access door first portion towards its closed position, and pivots to a second position at which the receptacle is exposed and accessible through the cover plate in response to movement of the access door first portion towards its open position. Pivot features are formed on the cover plate and/or the access door for imparting rotational forces on the door second portion as the door first portion is slid between its open and closed positions. When the fitting includes multiple receptacles, the access door may be configured to cover some or all of the receptacles. Similarly, when a receptacle includes multiple terminals or outlets, the access door may be configured to cover some or all of the terminals/outlets in the receptacle. Alternatively, separate access doors of the same or different construction may be provided for each receptacle in the fitting and/or each terminal/outlet in a given receptacle.