The 1FL2304-4AF11-0MB0 is a SIMOTICS S-1FL2 low-inertia servo sized at 0.75 kW rated power on a 400 V 3AC supply, with a rated speed of 3000 rpm, a continuous stall torque of 3.02 Nm (M0) and a rated torque of 2.39 Nm (Mn) — a small-frame axis drive aimed at dynamic point-to-point moves where the rated/instant torque headroom matters more than the headline kW. It belongs to the 1FL2 servomotor family built to pair with the SINAMICS S200 drive line, so sizing, cabling and encoder feedback are matched against that drive platform rather than treated as a generic 400 V servo swap-in.
Mechanical build and on-shaft options
The motor is built on a 45 mm shaft-height frame with a plain shaft (tolerance N) and an angular connector for the power and signal lead — the standard compact form for panel-mount feed axes, small indexing tables and light conveyor sections. The encoder stack is the AM21bit absolute multiturn device and a holding brake is fitted as standard for this order code, which means the drive is delivered configured for vertical-axis or gravity-loaded applications where the brake must hold position when the DC bus drops; the brake coil and encoder cable exit through the same angular connector family.
Sealing, ingress and where it goes
Protection class IP65 is quoted with an oil seal fitted, so the body and shaft seal withstand coolant splash and light washdown typical of machine-tool enclosures — adequate for the cabinet-side of a wet cell but not for direct immersion or high-pressure food-grade cleaning.
Lifecycle and commercial class
The product class is class C — built to order and not returnable for credit — which is the standard commercial posture for configured servo motors and means stock depth at any single distributor is shallow even when the part is active; quote the build slot at RFQ time rather than treating it as a shelf item.
Compliance and paperwork on the unit
RoHS substance-compliance is declared with effect from 01-01-18, and REACH Article 33 information is provided via the manufacturer's Reach Information notice — sufficient for the standard EU declaration pack when the motor ships into a CE-marked machine. Export-control classification is recorded as AL:N / ECCN:N, so no special export licence applies for routine commercial shipments of this order code.