Fuji Electric SH-4 SH04AA 4SH431# 3NO1NC auxiliary relay has a 100–110V AC coil and provides three normally open contacts plus one normally closed contact. It belongs to Fuji’s 4SH series and is designed to extend a control circuit by adding extra contact paths for signaling, interlocking, and status indication in automation panels. With a 3NO1NC configuration, the NO contacts close when the coil is energized and the NC contact opens when energized, enabling straightforward control logic in electrical systems.
