Yes, a GFCI outlet can be installed safely at the absolute end of an electrical branch circuit. When positioned as the final device in a run, there are no downstream receptacles requiring protection. In this configuration, the incoming power wires from the electrical panel are connected strictly to the terminals labeled LINE, while the terminal screws labeled LOAD are left completely empty and covered with their protective tape. This provides full ground-fault protection for any appliances plugged directly into that specific outlet face. Verification: Press the TEST button on the receptacle and verify that plugging a lamp into the face cuts power immediately without affecting any prior upstream outlets.
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