Digital active current energy meter for direct connection. The device complies with EN 62053-21 and EN 50470-3 and is approved for energy billing by the European MID approval. In addition to displaying electrical energy (kWh), this meter can also display the current values for voltage, current and power. The devices comply with accuracy class 1 / B and device protection class II. The reactive power (reactive power) can additionally be read out via the M-Bus interface.