The electronic 3-phase energy meter type Professional is used to record the active electrical energy in alternating current or three-phase networks. The energy meter is used in industrial companies, in switchgear construction, in trade and in private use. The energy meter is available for direct connection as well as for current transformer connection N / 1A and N / 5A. On the LCD display up to 32 display data and other values can be retrieved. With the 4 S0 pulse outputs and the optional read-out interfaces (M-Bus, KNX, TCP / IP, LON, MODBUS RTU-ASCII), the further processing of the measured energy data, eg for cost center accounting, building control and energy management is guaranteed.