Electric kWh Meter, 100A 120/240 Volt, 3-Wire, 60Hz ELECTRIC METER - State-of-the-art, fully solid-state kWh meter with 800 pulse per kWh pulse output. SINGLE PHASE - Up to 100 amps, 120/240-volt, 3-wire, 60Hz. ACCURATE - 1% accuracy class, LCD readout in hundredths of a kWh, to 99999.99 kWh. COMPACT - Simple DIN-rail mounting designed for symmetrical load. LCD DISPLAY - Non-resettable LCD display. Usage data is maintained through power outages.