AC meter for measuring single-phase networks via a direct connection for currents up to a maximum of 65 A. The following values are displayed on a seven-segment display with up to 7 digits: active energy (class 1), power, current, voltage (LN) and frequency. Communication can take place via the integrated 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 2 DIN modules.