Patent ID: 8737025

Claim:
An electrical wiring device comprising: a housing assembly including a plurality of line terminals and a plurality of feed-through load terminals accessible via an exterior portion thereof, and a plurality of receptacle terminals disposed therein, the housing assembly further including a rear body member, a front cover assembly and at least one separator member, the front cover assembly including a central region and a plurality of receptacle openings in communication with the plurality of receptacle terminals adjacent to said central region; at least one frameless shutter assembly disposed in the front cover portion or in the at least one separator member between the plurality of receptacle openings and the plurality of receptacle terminals, the at least one frameless shutter assembly comprising a first shutter member and a second shutter member configured to move from a closed position to an open position when the hot and neutral blades of a plug blade set are simultaneously inserted into the receptacle openings to engage a set of receptacle terminals and remain closed otherwise, the front cover member and/or the at least one separator including a first stop member disposed proximate the first shutter member and a second stop member being disposed proximate the second shutter member, the first stop member and the second stop member being configured to prevent a foreign object from accessing one of the plurality of receptacle terminals after being inserted into a corresponding one of the receptacle openings; a fault detection assembly coupled to the plurality of line terminals, the fault detection circuit being configured to generate a fault detection signal in response to detecting a fault condition or a simulated fault condition; and a circuit interrupter assembly coupled to the plurality of line terminals, the plurality of feed-through terminals and the plurality of receptacle terminals, the circuit interrupter assembly including four sets of interrupting contacts configured to provide electrical continuity between the plurality of line terminals, the plurality of feed-through terminals and the plurality of receptacle terminals in a reset state, the electrical continuity being interrupted in a tripped state, the circuit interrupter assembly being configured to drive the four sets of interrupting contact from the reset state to the tripped state in response to the fault detection signal.