Reading the nameplate and matching drive
The 1FL2104-2BF11-0HC0 is a SIMOTICS S-1FL2 low-inertia servomotor in shaft height 40 mm, wound for a 400 V 3AC supply and rated Pn = 0.75 kW at Nn = 3000 rpm, with M0 = Mn = 2.4 Nm — meaning the continuous and standstill torque are equal, so the motor holds rated torque down to zero speed without thermal derating on a matched drive. It pairs specifically with the SINAMICS S200 drive family and ships with a holding brake, IP65 sealing with oil seal, and a plain shaft with N tolerance — a holding-brake axis on a machine tool or packaging line is the typical deployment, where the brake holds the load at standstill and the IP65 sealing keeps coolant and oil off the shaft seal in the cabinet-to-machine run-out. Feedback is a 17-bit absolute encoder read through the hybrid connector — resolution that holds the micron on a precision axis is the difference between a part that closes the loop cleanly and one that hunts, so the encoder class is the headline spec on the nameplate, not an afterthought.
Encoder, brake and IP65 — what they mean in the cabinet
The 17-bit singleturn resolution delivers 131,824 counts per turn, which is the deterministic position granularity the SINAMICS S200 uses to close the position loop — at 3000 rpm that is enough counts per millisecond that following error on a tuned axis stays inside the window the controller expects, no jitter in the loop. IP65 with oil seal means the housing is dust-tight and resists water jets, but the oil-seal spec is the relevant clause for a gear-lube environment — fitting this motor next to a reducer without the seal rating is what trips a warranty claim on a retrofit job. The holding brake is sized for the motor's continuous torque rather than for a peak emergency stop, so the brake's role here is to hold position with the drive disabled, not to absorb a moving load's kinetic energy — the axis needs an external stopping path on E-stop.
Lifecycle status and the BOM implication
The product class is C — built to order, non-returnable — so a small quantity mistake on the BOM is not a credit-card return; the order line ships once built and the buyer absorbs the surplus. Spec the quantity exactly against the axis count before raising the PO.
Sourcing posture for the BOM line
No pin-compatible alternative is named on the ledger within the 1FL2 family — substituting a different frame size or encoder class breaks the SINAMICS S200 commissioning profile, so the right move on a sourcing pinch is to extend the lead-time budget rather than re-engineer the axis around an unnamed substitute.