Sizing a Siemens 1FK7 against a worn servo on the line
The 1FK7061-4CF74-1TH0: For audit purposes, the lifecycle record on this order code is flagged eol_hot, per the specification carried on the listing. That classification is the procurement signal that dictates the sourcing channel — not a marketing notice — because once a frame goes EOL/HOT, the OEM channel narrows and the independent-distribution route becomes the working path for spares.
Replacement posture when the OEM channel narrows
An EOL/HOT classification per the listing means production intent has shifted — last-buy windows, surplus stock draw-down, and broker-channel recovery are the realistic paths. For a municipal or framework-agreement buyer, the documentation pack that travels with the part (nameplate trace, certificate of conformance, country of origin) becomes the audit-defence evidence, not a footnote, so the RFQ should request it explicitly rather than letting it default. There is no official L* successor order code on the record for the 1FK7061-4CF74-1TH0. Per the specification available, the only honest cross-reference is parametric — a same-series 1FK7 frame with the next-higher or next-lower stack length, fully compliant with the existing drive project file, will require a re-validated commissioning sheet. Pinout-and-encoder compatibility is not assumed across suffixes.