Siemens 7KM2112-0BA00-3AA0 Monitoring Device

The Siemens SENTRON PAC3200 7KM2112-0BA00-3AA0 is a panel‑mount 3‑phase power monitoring device with an LCD display, designed for direct measurement in low‑ to medium‑voltage installations. It supports up to 690 V line‑to‑line (L‑L) and 400 V line‑to‑neutral (L‑N), with a direct current input rating of 5 A, making it suitable for direct connection in typical three‑phase systems. The unit measures apparent, active, and reactive energy and communicates over Modbus TCP, with optional Modbus RTU, PROFINET, or PROFIBUS interfaces for integration with PLCs and energy management systems. Accuracy is class 0.5 according to IEC61557‑12 or class 0.5s according to IEC62053‑22, and it is powered by a wide‑range AC/DC supply. Its mounting footprint uses a 92 × 92 mm cutout, and the device size is 96 mm, with screw terminals for reliable wiring. The PAC3200 family variant 7KM2112‑0BA00‑3AA0 includes automatic line frequency detection and defined pulse timing (initial 30 ms, full‑scale 500 ms) to align with standard energy metering pulses. This model combines straightforward on‑device readouts with flexible network connectivity, making it well suited for industrial energy monitoring, panel‑level power audits, and integration with building management or process control systems.