Sizing a 200 V S200 axis around this motor
The Siemens 1FL2103-4AG00-1SC0 is a SIMOTICS S-1FL2 low-inertia servo in the 1FL2 family, sized for the SINAMICS S200 drive on a 3 AC 200 V bus — the 0.4 kW rated power, 3000 rpm nominal speed, and 1.27 Nm rated torque set the continuous operating point the drive has to follow in current and velocity loops. With M0 equal to Mn at 1.27 Nm and no holding brake, this is a continuous-duty motor rather than a high-start-stop variant — pick it for steady positioning axes (small packaging, light indexing, lab automation) where the brake option is handled at the gearbox or by the load.
Mechanical fit and field wiring
Shaft height 30 mm with a keyed shaft (tolerance N) means standard small-frame couplings and pulleys seat directly — no special half-key balancing step required at assembly. The AS-i hybrid connector carries power and the 21-bit encoder in one plug, so the cabinet-side terminations collapse to a single cordset rather than separate power and feedback cables. IP54 with no oil seal makes it suitable for dry, indoor cabinets and clean machine enclosures, but not for washdown or food-grade lines where IP65K or IP67 is mandatory.
Lifecycle, ordering class, and compliance
The product class is C — built to order, non-returnable, non-reusable — so the RFQ should match the drive system quantity one-for-one and any spare held should be planned deliberately rather than recovered from a cancelled order.
Group codes, packaging, and export posture
Siemens classifies this motor under Group Code R220 and Product Group X0DJ — those are the internal codes to quote on the PO line so the factory dispatch desk routes the order into the correct build pool for the S200 drive family. Export Control Regulations show AL:N / ECCN:N, which means no special export license is required for standard commercial shipment — paperwork at the dock stays at the standard commercial-invoice level.