Measurement: THD Plug & Play: yes Alarm up to: 10 alarms FCP system: yes Interface: display, keyboard 4 quadrant PFC: yes Supply and measuring voltage: 400 VAC ± 10%, 50 / 60 Hz Current measurement circuit: CT, IN / 5 Accuracy of voltage measurement: 1% Accuracy of current measurement: 1% Accuracy of cos measurement: ±2% Display: 27 electrical variables Relay outputs: 6 or 12, 1 A, 250 V, 250 W Protection degree: IP 40 Dimensions: 144 x 144 x 55 mm Connection: 6 / 12 - steps regulation