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 M-Bus interface 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.