SIMOTICS S-1FK2 HD, 1.27 Nm, dual voltage window
The 1FK2104-4AF00-0SB0 is a Siemens SIMOTICS S-1FK2 HD servo motor rated M0=1.27 Nm with two operating windows: 0.4 kW at nN=3000 rpm from a 380-480 V supply and 0.2 kW at nN=1500 rpm from a 200-240 V supply, which lets the same frame ride on either a 230 V line or a 400/480 V drive bus without a different mechanical mount. Feedback is an absolute encoder single-turn 22-bit (AS22DQC) and the motor lands on the drive side via a DRIVE-CLiQ M17 plug, with a separate M17 power connector — the DRIVE-CLiQ link is what carries the encoder data back to a SINAMICS drive, so this is not a generic analogue servo even though the housing looks like one.
Shaft, seal, and what IP64 actually means in service
Mechanical fit is a cylindrical shaft D19x40 mm with degree of protection IP64 — that rating covers dust-tight sealing and splashing water, so the motor belongs inside a cabinet or on a guarded machine section rather than washdown duty where IP65K/IP67 would be the working point. Packaging is one piece per shipper at 452.00 x 250.00 x 267.00 mm, which is the unit you actually receive, not a multi-pack — useful when sizing the inbound crate and the receiving dock for a single spare rather than a production lot.
Built-to-order commercial class and paperwork
Product class is C — manufactured / produced to order, which the manufacturer flags as not reusable or returnable for credit. That classification governs how the line item behaves at RFQ: quantities, configuration, and lead time are confirmed per order rather than drawn from a stocked shelf position.
Catalog identity inside the Siemens line
Catalog slotting is Group Code R220, Product Group 9021, Product Family "Ordering Data Overview" — a confirmation tool that the 1FK2104-4AF00-0SB0 belongs in the motion-control (servo motor) ordering universe rather than the SINAMICS power-module set, so a buyer verifying internal code tables can place it in the right family without confusing it with a drive or a gearbox.
What this motor pairs with in a panel
The DRIVE-CLiQ M17 interface and AS22DQC single-turn 22-bit absolute encoder are native to the SINAMICS S120 family and other SINAMICS drives that accept DRIVE-CLiQ motor modules, so the motor is intended to be ordered as a matched motion axis — not as a standalone brushless servo wired to a third-party drive with a generic resolver card.