What it is and where it sits
The Siemens 1FL2306-1AC11-0SB0 is a SIMOTICS S-1FL2 low-inertia servomotor sized for the SINAMICS S200 drive family — a 400 V 3AC machine rated 0.75 kW at a nominal 2000 rpm, with 3.58 Nm continuous and 3.7 Nm standstill torque, plain shaft to tolerance N, and an integrated holding brake (cites:). It carries the 21-bit single-turn absolute encoder common to the 1FL2 line and exits the motor body through an angular connector, so the cable dress angles naturally to the drive cabinet without fighting a straight-axial gland on a tight machine frame (cites:). Shaft height 65 mm and IP65 sealing with an oil seal make it the natural fit for machines with gearbox output or where through-shaft lubrication can weep past the lip — the seal is the difference between a clean factory floor and stained panels (cites:).
Ratings that actually decide the fit
Pn=0.75 kW at Nn=2000 rpm with M0=3.7 Nm and Mn=3.58 Nm — the near-equal standstill and nominal torque numbers tell you this motor is wound for continuous work near rated speed, not for high-overload punch cycles; spec the gearbox and load inertia to that envelope (cites:). IP65 with oil seal on a 65 mm shaft-height frame: the seal lets you mount the motor next to a chain drive or right-angle gearbox without losing the protection rating to oil wicking past the shaft — a common failure mode on lighter-duty IP54 machines (cites:). The holding brake is built in, so the part number as listed drops straight into a vertical-axis application without a second brake resistor or external brake block on the drive side; confirm the brake voltage against the SINAMICS S200 control wiring before commissioning (cites:).
Sourcing posture
Product class is the manufactured-to-order bucket: built per order, non-returnable, non-reusable against credit — so the spec sheet should be locked before the RFQ goes out, not after (cites:). Packaging is a single-piece shipper at 392 x 269 x 286 mm, group code R220 under product group X0DM — useful for the inbound goods desk when a crate shows up without the inner label intact (cites:,).