Identifies potentially dangerous arc-faults and responds by interrupting power * Easily installs as replacement for standard receptacle TEST and RESET button on receptacle face for localized testing * Tamper-Resistant ? shutter mechanism inside the receptacle helps prevent access to the contacts unless a two-prong plug is inserted * Meets or exceeds UL requirements for tripping time for both series and parallel arcs * Can be used to meet NEC requirements for Arc-Fault protection in new circuits, circuit modifications or extensions, or replacement receptacles