The device for measuring values in metric units (kWh) is designed for the direct measurement of active power in a three-phase system. A special electronics generates pulses under the influence of the flowing current and operating voltage, with the height of the pulses being proportional to the consumed electrical energy. The power consumption per phase is indicated by a flashing LED. The number of pulses is converted into consumed energy, and its value is displayed on the LCD screen (6+2). Power supply: 230 V~, 50 Hz, basic current: 5 A, maximum current: 80 A, minimum current: 0.25 A, pulse frequency: 800 imp/kWh, accuracy class B, three-module wide housing, mounting on DIN TH-35 mm rail, pulse output: power supply 12-27 V, pulse = 80 ms.