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 seven-segment display with up to 7 digits: active energy (class 1), power, currents, voltages (LL, LN) and frequency both per phase and overall. 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.