3 Channel Optocoupler Isolation Module AC 220V Isolated Board Testing Module No PCB Holder AC Detection Module

Output TTL level can be detected with the microcontroller.
The power supply can be 3-5V
Can also access PLC24V level
Then the PLC input terminal of the PLC COM power supply 24V input termination of the board signal output OUT, optocoupler board GND power negative
Blue 2P 5.0 terminal connected to 220V voltage
3P terminal connected to the microcontroller input
Theory:Voltage Relay
Protect Feature:Sealed
Contact Load:High Power
Model Number:220V Optocoupler
Usage:Protective
Voltage:220V
Power Source:AC