Siemens AG 7KM2112-0BA00-3AA0 Monitoring Device

Siemens Sentron PAC3200 power monitoring device, model 7KM2112-0BA00-3AA0, is a panel-mount, three‑phase energy meter with a built‑in LCD on a 96 × 96 mm front panel that provides live readings of voltage, current, power and energy for detailed energy management in low‑voltage distributions. It measures line‑to‑line voltage up to 690 V and line‑to‑neutral up to 400 V, with current inputs selectable at 1 A or 5 A per phase via screw terminals, and can display apparent, active and reactive energy. Communications include Modbus TCP with optional Modbus RTU, PROFINET or PROFIBUS for integration into PLCs and energy management systems; the auxiliary power supply covers 95–240 V AC, 50/60 Hz. Accuracy is class 0.5 (IEC61557-12) or 0.5s (IEC62053-22). This PAC3200 device is commonly used in electrical distribution panels, switchgear and power monitoring cabinets to provide detailed energy data and power quality insights; note that Siemens lists a successor, 7KM3220-0BA01-1DA0 (SENTRON PAC3220), but 7KM2112-0BA00-3AA0 remains a commonly referenced Pac3200 variant.