WAGO-I/O-SYSTEM 789 Series Feedthrough Current Sensors continuously measure dc currents to optimize photovoltaic (PV) energy production. Via serial connection, the 789-620 (0-80A dc) and 789-621 (0-140A dc) sensors transmit data with an accuracy of 0.5% (full scale value). Devices are equipped with dual RJ-45 interfaces and transmit data via RS-485 serial communication lines up to 4000 feet. Thirty-two Current Sensors can reside on one line for connection to firm’s I/O-SYSTEM or PC as a MODBUS Slave.
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