Lifecycle posture: EOL/HOT and what that means for the BOM line
Siemens lists 1FK7040-5AK71-1AG0 at lifecycle stage EOL/HOT, so the line is past last-time-buy and new-build inventory at the factory has run out — the part survives on the independent channel only, and lot-level traceability is what separates a usable spare from a paperweight on the shelf.
What the motor physically is on the bench
On a retrofit or a line-down spare, the procurement question is not just the MPN but the encoder variant and shaft keying carried inside the -1AG0 suffix — confirm the nameplate against the BOM before committing, since 1FK7 motors differ on resolver vs. absolute encoder and on holding-brake fitment in ways that the order code alone does not always telegraph to the cabinet builder.