Siemens 7KM3220-0BA01-1DA0 Energy Monitor Video Intro

The Siemens 7KM3220-0BA01-1DA0 (SENTRON PAC3220 family) is a 96×96 panel-mounted energy monitor built for harsh control-cabinet doors. Its Class 0.5 active-energy accuracy beats the 0.5S of the PAC3120, so consumption metering stays true. Dual RJ45 ports deliver Modbus TCP redundancy with no single point of failure, while the 100–250 V AC/DC wide-range aux supply draws from the same control voltage as contactors, relays and PLCs — no separate PSU or converter. An IP65 front bezel and 325 g body survive the cabinet environment; two digital inputs and two digital outputs are expandable via add-on modules for analogue inputs, N-conductor measurement and residual-current monitoring. It measures up to 690/400 V at 45–65 Hz on a graphical LCD.