3相电压指示器 WN-3-RS 20-450V RS-485/ModbusRTU 数字显示 3模块 DIN导轨安装 F&F EA04.007.057 Евроавтоматика F&F

The WN-3-RS voltage indicator is designed to display phase or line voltage in a 3-phase AC network and transmit data via the RS-485 interface. Used for visual voltage control in distribution boards, technological equipment, dispatching systems, etc. Features - display of effective voltage values on a digital indicator, transmission via RS-485; - setting of phase or line voltage display; - setting of maximum and minimum voltage values, alarm upon reaching the set value; - storage of minimum and maximum values in memory, reading values from the front panel or via RS-485; - maintaining operation when powered from a single phase, in the voltage range from 20 to 450 V. Operating principle The indicator measures the effective values of phase or line voltages and transmits data via the RS-485 interface according to the MODBUS RTU protocol. Voltage values are displayed on the indicator's digital display. The indicator is powered from the measured voltage.