S-1FL2 servo sized for a 400 V cabinet branch
The Siemens 1FL2204-2AF01-0SC0 is a SIMOTICS S-1FL2 low-inertia servo in the 1FL2 family, designed to pair only with a SINAMICS S200 drive — not a generic 400 V brushless that bolts onto any controller. Supply voltage is 400 V 3AC, continuous power 0.75 kW, rated speed 3000 rpm, with standstill and rated torque both at 2.4 Nm, so the motor holds its torque envelope flat across the working speed range rather than tapering. Shaft height is 40 mm, which is the small-frame end of the 1FL2 line — it slots into compact machine axes where a 0.75 kW continuous draw is the right fit, and pairs to the S200 drive's matching 400 V input stage without an external transformer.
Mechanical fit: shaft, seal, connector, no brake
The shaft is plain with tolerance N (no key, no tighter than standard), which keeps the coupling side simple — buyers specify a clamp or bellows coupling to suit the driven load. There is no holding brake built in, so any vertical-axis application needs a separate brake on the gearbox or a counterbalance. Connection is the hybrid AS21 connector (power + signal + brake wires in one shell — brake pins present even though no brake is fitted here), and the housing carries IP65 with an oil seal, so the motor tolerates coolant splash and cutting-fluid mist common in a small-shop CNC retrofit. The oil seal adds drag — relevant if the application is a low-speed positioning axis where every millinewton counts. Encoder is the 21-bit absolute single-turn (AS21), which gives the SINAMICS S200 the absolute position it needs on power-up without a homing sequence — a real time-saver on machine retrofits where the operator expects the axis to know where it is at first enable.
Ratings read for fit
At 0.75 kW continuous and 2.4 Nm, this is a light-duty servo — it covers small CNC spindle-indexing axes, tabletop pick-and-place, lab automation, and short-stroke conveyor positioning. Sizing rule of thumb: 2.4 Nm at 3000 rpm is roughly 0.75 kW mechanical, so the drive's continuous current must match the motor's continuous torque current, not just the peak. The 400 V 3AC supply rating means the cabinet must already have a three-phase 400 V branch — a single-phase 230 V shop cannot run this motor directly. The matching drive is the SINAMICS S200 in the corresponding 400 V / 0.75 kW frame, and the hybrid cable on the S200 side is the AS21 type that mates with the motor's connector without an adapter.
Lifecycle and order class
Lifecycle stage is current and the part carries product class C — built to order, not returnable for credit, because the 0.75 kW frame is configurable in ways (encoder, brake, shaft) that make a one-size stock return impractical. That is the procurement reality: order is firm once placed, and quantity breaks are quoted against the RFQ, not off-the-shelf. Group code is R220 and product group is X0DK for internal ordering routing — useful on the PO line if Siemens' order-entry team needs to match the part to the right factory slot. RoHS compliance is declared since 01-01-18, REACH Art. 33 candidate-list information is available on request, and export control is AL:N / ECCN:N — so the motor ships without an export licence into most jurisdictions, simplifying cross-border orders for small shops that import through a freight forwarder.
Handling and shipment
Ships as a single piece in a 382 x 222 x 240 mm pack — small enough that it rides normal parcel freight to a small shop rather than a crate shipment, though the hybrid connector and shaft should be checked on receipt before signing the carrier's clean BOL.