Modbus bidirectional three-phase meter. Maximum current 3x80A, standby loss only 0.8 watts at L1 and 0.5W each at L2 and L3. Modular installation device for mounting on mounting rail DIN-EN 60715 TH35 in installation cabinets with protection class IP51. 4 pitch units = 70 mm wide, 58 mm deep. Accuracy class B (1%). With Modbus / RTU (RS485) interface. The directly measuring three-phase meter measures the active energy based on the currents flowing between the inputs and outputs. The self-consumption of only 0.8 watts or 0.5 W active power per path is not measured and not displayed. The active energy is added depending on the sign. Positive performance in the meter means energy consumption, negative performance means energy delivery. The energy measurement is balanced. If the energy consumption (P positive) is greater than the energy supply (P negative), the count T arrow to the right is increased. If the energy supply is greater than the energy consumption, the meter reading T arrow to the left is increased. Energy consumption is shown with a right arrow and energy supply is shown with a left arrow above the active bar in the display. 1, 2 or 3 phase conductors with currents of up to 80 A can be connected. The starting current is 4OmA. Connections L1 and N must be available. Connection via RS485-Modbus data logger: Data transfer Modbus / RTU (RS485) and address assignment according to the operating instructions. Energy procurement and energy delivery are stored in non-volatile memory and are displayed again immediately after a power failure. The 7-segment LC display can be read twice within two weeks even without a power supply. The power consumption and the power supply are indicated by an LED next to the display that flashes 1000 times per kWh. To the right of the display are the MODE and SELECT buttons, which are used to scroll through the menu in accordance with the operating instructions. First, the backlight turns on. Then the total active energy per import and delivery, the active energy of the resettable memory import and delivery as well as the instantaneous power, voltage and current values for each outer conductor can be displayed. Error message: If the phase conductor is missing, the corresponding phase conductor is shown on the display.
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