Three-phase DIN-rail energy meter for Home Assistant and ESPHome, built on an ATM90E32AS metering front end. Three voltage channels (85-265 V AC) and three current channels through external current-output CTs with a secondary of 60 mA RMS or less; voltage-output clamps of the 333 mV or 1 V class and 1 A or 5 A secondaries are not compatible. Two SPDT relays rated 3 A at 250 V AC for local load shedding. Modbus RTU slave on RS-485.