The Siemens 7KM4212-0BA00-3AA0 is a SENTRON PAC4200 power monitoring device for three-phase low-voltage distribution and industrial energy systems. It measures line voltage, current, active, reactive and apparent power, energy, power factor, frequency, total harmonic distortion and individual harmonics from the 2nd to the 64th order. The unit combines a backlit LCD, integrated 10/100 Mbit/s Modbus TCP communication, optional expansion interfaces and configurable digital I/O. With Class 0.2 active-energy accuracy, the Siemens 7KM4212-0BA00-3AA0 supports detailed power-quality analysis, load monitoring and energy-management integration.

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