Reading the 1FL2104-4BF01-0HC0 description string
The 1FL2104-4BF01-0HC0 is a SIMOTICS S-1FL2 low-inertia servo motor from the 1FL2 family built to pair with the SINAMICS S200 drive — a 400 V three-phase unit delivering 1 kW rated power at 3000 rpm with a continuous/stall torque of 3.2 Nm on a 40 mm shaft-height frame, fitted with an absolute 17-bit single-turn encoder (AS17bit), plain shaft with N tolerance, no holding brake, and an IP65 sealing class with oil-resistant seals.
Sizing read: power, speed and torque
At 3000 rpm and 3.2 Nm, the motor lands squarely in the low-inertia 1 kW class typical of dynamic point-to-point motion on packaging, small-format assembly and feed axes; the equal M0/Mn values (3.2 Nm stall, 3.2 Nm rated) indicate the frame is rated for continuous rated torque at rated speed without the need to derate for thermal headroom in most ambient cabinet installations. The 400 V 3AC supply matches the SINAMICS S200 input class — selecting a 230 V-class drive instead would clip the available torque/speed envelope, so the matching drive decision is locked at the SINAMICS S200 line rather than a V90 or V20 alternative.
Mechanical integration notes
The 40 mm shaft height with plain shaft and tolerance N is sized for direct coupling via a standard backlash-free coupling or belt-pulley stage; the IP65 rating with oil-resistant seals confirms the motor is sealed for machine environments where cutting fluid or lubricant mist reaches the housing, which is the deployment threshold the buyer should check against the actual cabinet-side splash profile. With no holding brake fitted on this variant, vertical-axis applications must provide an external holding means (load-side brake, counterbalance, or a different 1FL2 order code that includes the brake option) — the encoder side stays the same, so a brake-equipped replacement is a parameter change rather than a wiring change.
Procurement and lifecycle posture
Lifecycle stage is recorded as current and the product status is Active, so the 1FL2104-4BF01-0HC0 sits inside the standard production window for the 1FL2 family with no immediate last-time-buy signal — orders are taken against the configured order code, and the product class is C (made-to-order, non-returnable, non-reusable), which means each unit is built to the configuration string and cannot be cancelled or returned against credit once production has kicked off. Compliance is on file for RoHS since 01-01-18 and REACH Art. 33 disclosure is provided via the manufacturer's Reach Information page; export control is AL:N / ECCN:N, so the part ships without a special licence from the German/EU factory side. Packaging is a single-piece carton at 315 × 182 × 172 mm, consistent with the 40 mm-frame size class.
Catalog identifiers
The part carries Group Code R220 and Product Group X0DK on Siemens' internal cataloguing — useful for cross-referencing the order code against Siemens' configurator and for matching it to the SINAMICS S200 firmware/device compatibility tables, but not a buyer-facing selection parameter.