Where the XCKP2521P16 sits on the machine
The Schneider Electric XCKP2521P16 is a Telemecanique-series medium-duty limit switch, the form factor that typically drops onto a conveyor frame, packaging line, or material-handling guard to confirm end-of-travel or door position.
Reading the catalog line against the PO
The brand shown on the listing is Square D Sensors & Safety, the Schneider Electric sub-line that carries the Telemecanique detection and switching portfolio into North American builds — worth catching on the PO so the receiving dock matches what was specified.
Sourcing posture for the BOM line
No official successor order code sits in the record for this listing, so a like-for-like swap means staying within the Telemecanique XCKP family rather than chasing a cross-reference the manufacturer has not published.