Only calibrated meters are approved for electricity accounting according to §25 of the German calibration law. Non-compliance is an administrative offense according to §19. Maximum current 3x80A, standby loss of only 0.5 watts per path. Series installation device for mounting on DIN-EN 60715 TH35 mounting rail. 4 division units = 70mm wide, 58mm deep. Accuracy class B (1%). With S0 interface. The direct measuring three-phase meter measures the active energy based on the currents flowing between the inputs and outputs. The own consumption of only a maximum of 0.5 watt active power per path is not measured and not displayed. 1, 2 or 3 external conductors with currents up to 80A can be connected. The starting current is 4OmA. The N connector must be present. The 7-segment LC-display can be read twice within two weeks even without power supply. The power consumption is indicated by a bar flashing 100 times per kWh in the display. Can also be used as a 2-tariff counter as standard: When 230V is connected to terminals E1/E2, the system switches to a second tariff. To the right of the display are the MODE and SELECT buttons, which are used to scroll through the menu according to the operating instructions. First, the backlight turns on. Then the total active energy per tariff, the active energy of the resettable memory RS1 or RS2 as well as the instantaneous values power, voltage and current per phase conductor can be displayed. Error message (false): If the external conductor is missing or the current direction is incorrect, false and the corresponding external conductor is shown on the display.This text is machine translated.