Wiring kit for S2 wye-delta starter — phased-out with a direct successor
The Siemens 3RA1933-2B is a SIRIUS wiring kit designed specifically for star-delta (wye-delta) starters using Size S2 contactors. It carries 3 poles and is the dedicated interconnect set for that starter configuration.
Sourcing reality — quoted to order, successor available
For new designs, the successor 3RA2933-2BB1 is the recommended path. Available through independent distribution channels — quantities and pricing confirmed at RFQ. For legacy installations needing the original 3RA1933-2B, sourcing is possible against the BOM line.