KS40 is a set of SPST-NO and double in-line printed circuit board mount SSR, provides DC output switching in a high density package.  This relay's DC input is compatible with 5VDC,12VDC and 24VDC logic systems. The relays include a LED indicator to provide input status information. Rated load curent is 2A, rated load voltage is 50VDC,100VDC. The relays provide 2500VAC photo electric isolation, between input and output.  KS40 enables weak against strong electrical isolation and control, and level conversion. Can easily connect with computer and a variety of digital circuit interface.