The Siemens 3RV1917-5D is a 6 mm² terminal block from the SIRIUS 3RV1 series, designed for current outfeed and for connecting 3-phase busbars on the 3RV1917-1/4 family of motor starter protectors. It is currently in its active lifecycle stage, but the manufacturer has designated it a phased-out product with a preferred successor.
For long-term supply assurance, buyers should evaluate migrating to the 3RV2917-5D.