1 Kanal Opto Isolator Modul Optokoppler Trennplatine Spannungserkennung für
4,72 €
LED LIGHT INDICATOR: When there is 220V input, the LED is on, the optocoupler is turned on and the output is low. When there is no 220V input, the LED is off, the optocoupler is not connected. The output is pulled high by the resistor.
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