Siemens 3RA2933-2AA1 — SIRIUS electrical and mechanical wiring kit for a reversing starter (direction-of-rotation changeover) contactor assembly in size S2, with screw terminal connection. Comprises the main and auxiliary circuit wiring, two standard mounting rail adapters, two side modules and four connecting wedges. Its sibling is 3RA2933-2AA2; for a star-delta assembly of the same size see 3RA2933-2BB1 and 3RA2933-2BB2.