What you're actually unboxing
The Siemens 1FL2104-4BG01-0HC0 is a SIMOTICS S-1FL2 low-inertia servomotor from the 1FL2 family, built to pair with a SINAMICS S200 drive on a 200 V three-phase bus. Rated continuous power is 1 kW at a nominal speed of 3000 rpm, with standstill torque M0 and rated torque Mn both listed at 3.2 Nm — a 1:1 ratio that tells you the motor holds its rated torque across the working speed range rather than tapering at low rpm. Mechanical package is shaft height 40 mm with a plain shaft (tolerance N), no holding brake, and a 17-bit absolute encoder on the rear. Connection is the AS-series hybrid connector, so the power leads, brake leads, and encoder signals all land in one pluggable housing rather than three separate glands on the cabinet wall.
How the ratings land on a real line
At 1 kW continuous and 3.2 Nm with the motor sitting on a 200 V 3AC bus, this is the small-frame end of the S-1FL2 line — sized for conveyors, indexing tables, small packaging axes, and auxiliary feeds where the S200 drive has the headroom to push the motor through acceleration without slipping into field-weakening territory. The matching-drive call-out in the description is not decorative: the S-1FL2 motor electronics, encoder protocol, and connector pinout are designed against the SINAMICS S200 firmware, and a different drive family will not auto-configure the 17-bit AS feedback. Protection class IP65 with oil seal is the working-environment statement: the motor body and shaft seal hold up against coolant mist and light oil splash typical of a machining cell or wet-pack line, but the rating is for the body — the hybrid connector itself needs its mated sealing washer seated correctly, otherwise the wet end is the connector face, not the housing threads. No holding brake on this build. That matters for any vertical axis where the load must hold position with the drive de-energised — if the BOM line was specced for a brake and the -0HC0 suffix was substituted, the axis will free-wheel on power loss and you'll need either a second motor from the same family with the brake variant or an external holding brake on the gearbox.
Compliance and what ships in the box
The motor is RoHS-compliant since 01-01-18 and carries the REACH Art. 33 duty-to-inform statement; export control classifications are AL:N / ECCN:N, which means no special export licence is triggered for the usual commercial destinations. Pack quantity is one piece per carton with outer dimensions 315 x 182 x 172 mm — that's roughly the footprint of a shoebox, so the panel-side handling is single-person and no lifting plan is needed, but do mind the encoder connector on the rear face during uncrate.
Lifecycle and how it's bought
Lifecycle stage is recorded as current, but the product class is C: produced to order, non-returnable, non-reusable against credit — so this is not a stocked-shelf commodity at the manufacturer. That posture drives the sourcing path: each BOM line is built against a fresh order, lead time is confirmed at quote, and substitution to a different suffix in the 1FL2 family changes the electrical and mechanical fit (brake variant, shaft key, connector orientation all live in the suffix code). The internal Group Code is R220 and the Product Group is X0DK for anyone reconciling this part inside a Siemens procurement or ERP system.