What the motor is, and where it sits on the SINAMICS line
The Siemens 1FL2104-2AF11-1MC0 is a SIMOTICS S-1FL2 servomotor in the low-voltage family designed to pair one-to-one with the SINAMICS S200 drive platform, specified for a 400 V 3AC supply at a rated power of 0.75 kW and a rated speed of 3000 rpm with standstill and rated torque both at 2.4 Nm. The shaft height is 40 mm, the encoder is a 21-bit absolute multi-turn unit brought out on a hybrid AM21bit connector, the shaft carries a key with N tolerance, and the body carries an IP65 rating with an oil seal — meaning the case is sealed for washdown-adjacent and oily industrial cells, not for full submersion.
Ratings decoded for the BOM line
Pn 0.75 kW at Nn 3000 rpm gives the constant-power speed range the S200 will command in normal motion profiles — the S-1FL2 frame is sized for point-to-point and light continuous-duty work such as small-format packaging, indexing tables, lab automation and auxiliary feed axes rather than heavy main-spindle duty. The M0 = Mn = 2.4 Nm figure means the motor can hold full rated torque down to standstill without external cooling step-down, which matters where the axis parks under load between cycles; the holding brake listed on the unit is the static park brake, not a dynamic braking element. IP65 with oil seal means the shaft entry is sealed against light oil mist and low-pressure washdown, not against jet wash; for a cabinet-external mount in a wet cell, plan the cable gland and the hybrid connector mating face to match the same IP class so the seal is not lost at the connector.
Lifecycle, compliance and procurement metadata
RoHS compliance has been declared since 01-01-18 and REACH Article 33 duty-to-inform applies via the standard Siemens Reach Information set, so the EU declaration pack is on file rather than something the buyer has to chase per shipment. Group code R220 and product group X0DK are the Siemens internal classification keys for this servomotor line; product class C marks it as produced to order, which is normal for this family and means standard returns are limited — built-to-order servomotors are non-returnable against credit once the encoder has been commissioned. Export control lists ECCN N and AL N, so the part ships without a U.S. ECCN filing on the shipping documents and can move through standard industrial-export channels.
Packaging and handling at the receiving dock
The unit ships one per package at 382.00 x 222.00 x 240.00 mm — a single-axis carton sized for hand-off to a controls integrator, not a pallet-load, so the encoder and the holding brake still need the original packaging retained through installation if the unit will go back through a return-material process.