Sizing the axis on a SINAMICS S200 cabinet
The 1FL2310-2AC11-0MB0 is a SIMOTICS S-1FL2 servomotor sized to pair with a SINAMICS S200 drive, drawing 400 V 3-phase supply and delivering Pn=3.5 kW at Nn=2000 rpm — meaning the drive line-side transformer, bus capacitance, and braking resistor are matched to that exact nameplate envelope, not a generic 400 V class. At standstill the motor develops M0=18.1 Nm and at rated speed Mn=16.7 Nm, so a vertical or high-inertia axis has meaningful holding margin through the holding brake rather than relying on torque at zero speed.
Mechanical fit, shaft, and brake option
Shaft height 90 mm with a plain shaft, tolerance N, puts this motor in the mid-frame S-1FL2 family and mates to standard gearboxes or couplings selected for that frame. The motor ships with an integrated holding brake, so the safety circuit on the SINAMICS S200 must be wired to the brake release — drop-in replacement on the cable side assumes the brake conductors land on the same pins as the previous unit. The angular connector AM21bit carries power, encoder feedback, and brake conductors through one moulded plug, which keeps the cabinet-side cable gland count down but pins the harness layout to the AM21bit pinout — a retrofit from a different connector family needs a re-terminated cable, not just a swap.
Sealing, oil seal, and the IP65 envelope
Protection class IP65 with oil seal means the shaft entry is sealed against low-pressure water jets and oil mist, suitable for machine-tools and packaging lines where coolant or lubricant splash reaches the motor face — but the rating assumes the AM21bit connector is mated to its rated counterpart with its own seal seated.
Compliance and catalog identifiers
RoHS compliance has applied since 01-01-18, and REACH Art. 33 duty-to-inform obligations are met via the published Reach Information, so the part ships with the documentation pack a panel builder or EU end-customer audit trail expects. Export control sits at AL:N / ECCN:N, so the motor leaves the EU without an export licence gate for most destinations — useful for projects that span multiple jurisdictions. Catalog identifiers group this line under Group Code R220 and Product Group X0DM, which is how the part is filed inside the Siemens ordering system and matched against the SINAMICS S200 accessory tree.
Lifecycle and supply posture
Product class C applies: made to order, non-returnable against credit, so spares should be specified to the actual axis count plus the usual commissioning margin rather than padded with returns.