... , 2 digital outputs,RS485 MODBUS Meter PCM10:Panel-mount,LCD display3-phase, 4-quadrant energy metering, class 0.5 accuracyAll ... ,THD metering and alarmingDirect connect voltage inputs,no need for potential transformers(PTs) up to 400VACConnect current inputs through ... potential transformers(CTs)for 1A or 5A2 digital inputs optional, 2 digital outputs, ...