The Siemens 3RV1917-7AA00 is a contactor base for size S00 contactors, fitted with spring-type terminals in single-unit packaging. It snaps onto a 35 mm DIN rail — the standard mounting method for SIRIUS auxiliary and power contactors in this frame size, so it integrates directly into existing control-panel layouts without adapter plates.
Phased-out product. Lifecycle stage is current. Official successor is SIRIUS 3RV2927-7AA00.
Snap-on mounting onto 35 mm DIN rail means the base clips directly onto the rail without screws — typical for S00 contactor accessories in the SIRIUS family. The spring-type terminal accepts solid or stranded conductors with a ferrule, and the single-unit packaging suits one-off replacements or panel additions where bulk packaging is unnecessary.