Receptacle duplex with isolated ground features 140 joules of energy absorption in each of the three modes. 9,000 A current handling capability in each of three modes, line to neutral, line to ground, neutral to ground. 1 filtering capacitor for 7 to 1 average noise reduction. Nominal let-through (suppressed) voltage in all 3 modes, 500 V. LED indicator light. Response time less than 1 nanosecond for unmounted MOV. Over current protection in all 3 modes. Back and side wire capability including ground terminal.