Three-phase energy meter for transformer ratios of 1A or 5A, S0, MID. This energy meter is designed for four-quadrant measurement with the following accuracy classes: Active energy Class B according to DIN EN 50470-3, Active power Class 1 according to IEC 62053-21, Active power Class 1 according to IEC 61557-12, and Reactive power Class 2 according to IEC 62053-23. The bidirectional meter is factory MID certified (a sealing kit is included in the delivery) and features a resettable partial meter. It is suitable for measuring energy consumption and energy delivery in all network systems. Two tariff measurements can be controlled via 230 V AC and output through two configurable pulse outputs. The digital display with backlighting shows consumed and delivered active (kWh) and reactive energy (kvarh) for all tariffs. Additionally, real-time measurement values for active power (kW), reactive power (kvar), apparent power (kVA), voltage (V), current (A), power factor, frequency (Hz), and tariff are displayed for each phase with a resolution of up to 9 digits including two decimal places. Measurement values for consumed and delivered active (kWh) and reactive energy (kvarh), as well as consumed active energy (kWh) for Tariff 1 and Tariff 2, are output via pulse output. All measurement values and energy values for Tariff 1 and Tariff 2 can also be output via an IR interface. Wiring errors and connection errors are indicated, and the measurement data is periodically stored.