1/3/8 Channel Bit AC 220V Optocoupler Insulation Module Board Adaptive For PLC
ab 1,73 €
3-Channel Optocoupler Isolation Module. Function:test whether AC 220V is existed;when there is 220V,optocoupler can be conductive to ground;otherwise,it is not conductive. 1PC 3-Channel Optocoupler Isolation Module.
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