AC measuring device for direct measurement up to 100 A, with calibrated offset measurement method (MID compliant). It features two tariff controls via the command register, a partial counter with reset function, and extended measurement functions for active and reactive energy (consumption and generation), current, voltage, active and reactive power, power factor, and frequency. Accuracy class 1 (IEC 62053-21 and IEC 61557-12) or class B (EN 50470-3). Communication is via M-Bus. It is designed for DIN rail mounting (2TE) and includes an 8-digit LCD display as well as a red LED indicator to show the measured electrical parameters. The product dimensions are width 35.8 mm, depth 63 mm, height 96.71 mm, and the product weight is 220 g. The operating temperature range is from -25 to +55 °C. The power supply is self-sufficient with 10 VA. The protection class is IP 51 at the front, IP 20 for the housing.