KS34 is a high power solid state relay, offer (3~32)VDC or (90~280)VAC input voltage control, with output current range from 25A to 80A and load voltage range from 48VAC to 600VAC. SCR output provides high dv/dt capability more than 500v/us. The relays provide 4000VAC opto-isolation between input and output. Encapsulating with epoxy resin. Outline dimension is 58.6mmX45.7mmX26.5mm.