DIN rail mount for PC817 2 channel optocoupler module
thingiverse
DIN rail mount for chinese dual PC817 optocoupler board (17mm / 1 part unit width) PCB has common ground on inputs, outputs may be grounded via jumpers. If you are looking for a board without any connections between both optocouplers, check out my custom PCB at https://aisler.net/p/EGJTGZKC
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