5V/12V/24V Relay module,4 Channel Optocoupler Module Board High & Low Trigger (5V)

[OPTOCOUPLER ISOLATION] Chip type optocoupler isolation delivers strong drive and stable performance while helping protect low voltage control circuits during industrial PLC automation tasks. [WIDE VOLTAGE OPTIONS] Designed with selectable 5V 12V and 24V operating versions to match common control systems and relay power needs in automation equipment and switching projects. [HIGH LOW ] Each of the 4 channels supports selectable high or low level letting users adapt the relay board to different controllers with flexible signal logic. [10A RELAY OUTPUT] Supports loads up to AC 10A or DC 30V 10A with NO COM and NC terminals on every channel giving convenient switching control for multiple external devices. [USER FRIENDLY DESIGN] Green power and red relay status LEDs make debugging easier while terminal connections mounting holes and fault tolerant behavior improve installation and daily use.