1.5 kW at 3000 rpm — what the S-1FL2 frame delivers
The Siemens 1FL2105-2AF11-0SB0 is a SIMOTICS S-1FL2 low-inertia servomotor built to pair with the SINAMICS S200 drive system — a 1.5 kW rated motor at 3000 rpm nominal with 4.6 Nm continuous and 5 Nm stall torque means it sits in the mid-frame of the family and is sized for high-dynamic packaging, pick-and-place and small-format converting axes where cycle time, not steady torque, drives the motor choice. Supply is 400 V three-phase and the unit ships as a 52 mm shaft-height machine with an integrated holding brake and an absolute 21-bit single-turn encoder resolved through an angular connector, so the drive side gets motor ID and commutation data over the S200's one-cable digital link — wiring at the panel is essentially a single connector per motor rather than a separate resolver and power lead. Protection class IP65 with oil seal on a plain N-tolerance shaft, so the motor survives splash and light coolant exposure typical of food-and-bev and machine-tool surrounds, but it is not a washdown-rated submersion part — keep it out of direct jet streams.
Lifecycle, group code, compliance chain
Lifecycle is current on the manufacturer's record, with no official successor or cross-reference published — the 1FL2 family continues to ship as the matched motor line for SINAMICS S200, so a new build or a like-for-like replacement should spec straight against this order code rather than chasing an alternate. Internal commercial codes read Group Code R220 and Product Group X0DK — these are Siemens' own ordering and product-line identifiers and don't change the electrical fit, but they matter when matching a quote, a packing-list line, or a customs document back to the right sub-family.
Mechanical envelope and what to check at the panel
Product class is C — built to order, not returnable for credit — so the cable exit orientation (angular connector), encoder type, brake option and shaft detail are all committed at order entry and cannot be reworked on a returned unit. Export control markings AL:N / ECCN:N mean no licence is required for typical non-military export routes, and the single-piece carton is sized at 432 x 222 x 240 mm — order freight and packing-slot planning against that, not a generic small-motor box.