An electrical receptacle unit with locking feature includes a receptacle adapted to be electrically connected to a source of electricity. The receptacle includes an electrical fitting having electrical contacts contained therein and/or extending therefrom, a socket surrounding the electrical fitting, and a plate disposed at a front of the socket. The electrical receptacle unit further includes a locking bracket that includes a central portion having first and second ends, a lock tab extending from a side of the central portion, and a pair of support arms, each extending forwardly from a respective one of the first and second ends. The locking bracket is pivotably secured to the plate, with at least a portion of each support arm positioned within a respective notched area of the plate. The locking bracket is pivotable relative to the plate between a first position, whereby a plug electrically seated within the socket is unobstructed, and a second position, whereby the plug electrically seated within the socket is obstructed from removal by the lock tab.