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Siemens 1FK7042-5AF71-1UG0 — Servo Motors

Siemens 1FK7042-5AF71-1UG0 Servo Motor, EOL/hot stock

MPN1FK7042-5AF71-1UG0
End of Life

Siemens 1FK7042-5AF71-1UG0 SIMOVERT 1FK7 series servo motor, 4.54 kg, EOL/hot lifecycle, for SINAMICS drive control loops.

$5,575.29Ref. price · indicative, final on quote
Siemens 1FK7042-5AF71-1UG0 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Mechanical

1FK7042-5AF71-1UG0 — Mechanical
ParameterValue
Weight4.54 kgs

Product details

What this motor is and where it bolts in

The 1FK7042-5AF71-1UG0 is a Siemens SIMOVERT 1FK7-series servo motor used as the rotary actuator on SINAMICS S120 / G120-style drive packages — a compact, high-dynamic synchronous servo for machine-tool feed axes, packaging indexing tables, and similar precision motion loops.

Lifecycle flag and what it means for the BOM

No official successor or cross-reference is on file in the catalog record for this MPN; the practical second-source check is against other 1FK7042-frame variants within the same series rather than against a published replacement.

Frequently asked questions

Will 1FK7042-5AF71-1UG0 drop into a panel that was specified around 1FK7042-5AF71-1DB0 without rewiring?

Drop-in compatibility between 1FK7042-5AF71-1UG0 and the 1FK7042-5AF71-1DB0 variant cannot be assumed: both share the 1FK7042 frame but their catalog weights differ (4.54 kg vs 5.44 kg), and suffix-level differences within the family typically cover feedback option, brake, and connector keying. Treat the peer as a reference, not a guaranteed substitute, and match the suffix breakdown against the BOM before committing.

MPN
1FK7042-5AF71-1UG0