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Siemens 1FL6090-1AC61-0LB1 — Servo Motors

Siemens 1FL6090-1AC61-0LB1 SIMOTICS S-1FL6 Servo Motor

MPN1FL6090-1AC61-0LB1

Siemens SIMOTICS S-1FL6 servo motor, 1FL6090-1AC61-0LB1, 2.5 kW, 2000 rpm, 11.9 Nm, shaft height 90 mm, 20-bit absolute encoder, holding brake, IP65.

StockContact for availability
Lead time1-2 Weeks wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Product details

Spare-part servo with 20-bit absolute feedback

The 1FL6090-1AC61-0LB1 is a Siemens SIMOTICS S-1FL6 servo motor designated as a spare part, carrying a 2.5 kW rated power at 2000 rpm with a continuous torque of 11.9 Nm and a peak standstill torque of 15 Nm. It operates on a 400 V three-phase AC supply and integrates a 20-bit absolute encoder with a feather key on the shaft, plus a holding brake for vertical-axis holding. The IP65 degree of protection, achieved with the included sealing ring, makes it suitable for washdown environments in food-and-bev or machine-tool lines where coolant spray is present.

SINAMICS V70/V90 drive pairing

This motor is explicitly listed as compatible with SINAMICS V70 and V90 converters, meaning the encoder interface and motor feedback loop are pre-configured for those drive families without additional adapter hardware. The shaft height of 90 mm and the feather key tolerance define the mechanical interface for coupling to the load — confirm the mating half's bore and keyway dimensions before committing the BOM line.

Frequently asked questions

What drives are compatible with this SIMOTICS S-1FL6 motor?

The motor is compatible with SINAMICS V70 and V90 converters, which handle the 20-bit absolute encoder feedback and motor commutation directly.

What is the torque rating and shaft configuration?

Rated continuous torque is 11.9 Nm at 2000 rpm, with a peak standstill torque of 15 Nm. The shaft has a feather key and a 90 mm shaft height, with a holding brake included.

MPN
1FL6090-1AC61-0LB1