Patent ID: 7312963

Claim:
An electrical wiring device comprising: a plurality of line terminals and a plurality of load terminals; a fault protection circuit assembly coupled to the plurality of line terminals, the fault protection circuit assembly being configured to detect at least one fault condition and couple the plurality of line terminals from the plurality of load terminals in response to detecting at least one fault condition; a receptacle member including a housing and a cover, the cover assembly including receptacle openings configured to accommodate plug contact blades; receptacle contacts disposed in the housing and coupled to the line terminals to thereby establish an electrical connection between the receptacle contacts and the line terminals, each receptacle contact being in communication with a corresponding receptacle opening; a protective shutter mechanism integrated into the housing, the protective shutter mechanism being movable from a closed position to an open position upon insertion of the plug contact blades, the protective shutter mechanism being substantially sealed in the closed position and not movable from the closed position to the open position upon insertion of an object into one receptacle opening, whereby the object is prevented from making contact with the corresponding receptacle contact; and a mis-wiring sensor coupled to the plurality of line terminals and/or the plurality of load terminals, the mis-wiring sensor being configured to prevent the protective shutter mechanism from moving from the closed position to the open position upon insertion of the plug contact blades if a proper wiring condition is not sensed.