Lifecycle status and what it means for procurement
The 3RG7331-7CH51: For a BOM line that requires this exact order code, sourcing goes through independent surplus or broker channels; availability and lot condition are confirmed at RFQ, not assumed from a stock count.
Physical dimensions and sensor class
The housing measures 13 x 26 x 52 mm — a compact rectangular footprint typical of through-beam or retroreflective photoelectric sensors in the Siemens 3RG7 family.