KS20 is a set of SPST-NO AC type solid state relay with small dimension, single in-line printed circuit board mounting. Using surface mount process, it is resistant to high surge current capability, suitable for electromagnetic valves, motors, incandescent control. The relay's DC input is compatible with 5VDC, 12VDC and 24VDC logic systems. Optical isolation between input and output, the output in the form of zero-cross turn-on type and random turn-on type.