What the 1FL2103-4AF01-1HC0 is and where it fits
The 1FL2103-4AF01-1HC0 is a Siemens SIMOTICS S-1FL2 low-inertia servo motor built to pair with the SINAMICS S200 drive family — a compact combination used in packaging, printing, and general automation positioning loops. Rated 0.4 kW at 3000 rpm with a standstill torque of 1.27 Nm, it delivers its rated torque across the full speed range — meaning at 3000 rpm the motor still holds 1.27 Nm rather than falling off a peak-torque curve, which is the sizing advantage of this frame at this power class. The 30 mm shaft height puts it at the small end of the SINAMICS S200 motor range; the hybrid connector with 17-bit absolute encoder (AS17bit) gives single-turn position resolution fine enough for most indexing and camming tasks without a separate encoder overlay.
IP65 rating and enclosure detail
IP65 with oil seal means the motor shaft exit is protected against dust and low-pressure water jets — adequate for splash zones on a machine tool or food-adjacent enclosure where washdown hoses are not directed at the motor face. The oil seal specifically guards the shaft bushing where the rotating shaft exits the housing, the most likely ingress path on a servo. No holding brake is fitted in this variant; the motor relies on the drive's regenerative braking or an external brake to hold position when de-energised — typical for freely suspended loads or any axis where power loss must be managed by the drive's regen path rather than a fail-safe brake.
Made-to-order sourcing and lifecycle
The product is classified as C — manufactured to order, with no reuse or return against credit. This is a key sourcing flag: the unit is not pulled from a stocked buffer, and lead times are tied to Siemens' production scheduling rather than distributor inventory depth. The SINAMICS S200 series itself is an active product line, so a same-family replacement for a 1FL2 frame should be available — but confirm the cross-reference directly at RFQ rather than assuming a direct substitution. RoHS compliant since January 2018; REACH Article 33 duty-to-inform documentation is available on request. Group Code R220 is the internal ordering reference — useful when quoting through brokers or second-tier distributors who list by group code rather than the full MPN.