Acti9 iEM3100 Energy Meters The iME3100 energy measurement counter is used to measure the active energy consumed by single-phase, three-phase or three-phase + neutral type electrical circuits. Operating voltage: 3 x 100/173 Vac (50/60 Hz) → 3 x 277/480 Vac (50/60 Hz) Imax: 63 A IP40 front panel, IP20 casing Overvoltage and measurement category III, degree of pollution 2 Electromagnetic environmental class: E2 Mechanical environmental class: M1 Operating temperature: -25 → + 55 °C Models: iEM3100: kWh meter with partial counter iEM3110: kWh meter with partial counter and pulse output. MID certified iEM3115: multi-tariff meter controlled by digital input or internal clock, MID certified iEM3150: kWh meter with partial counter and current, voltage, power measurement. Modbus communication iEM3155: energy meter, four quadrant, multi-tariffs with partial counter and current, voltage, power measurement, Modbus communication, digital I/O, MID certified Standards IEC 61557-12, IEC 62053-21