Three-phase meter for measuring a three-wire or four-wire three-phase network via a CT transformer connection (configurable transformer ratio for current) up to a maximum of 6 A. The following values are output via a white backlit display with up to 7 digits: active energy (class 1) and reactive energy (class 2) for import and export, power, currents, voltages (LL, LN), frequency, cos phi, power factor and apparent power, both per phase and total. Communication can take place via the integrated RS485 interface (Modbus RTU) or via the infrared interface for connecting a KNX module. The energy meter has a pulse output. The meter is calibrated according to MID and approved according to IEC. The installation width is 4 DIN modules.