Reading the motor rating at the cabinet door
The Siemens 1FK2104-4AF10-0MB0 is a SIMOTICS S-1FK2 HD servo motor in the medium-inertia HD line, with a static torque M0 of 1.27 Nm and a rated output of 0.4 kW at 3000 rpm when fed from a 380-480 V SINAMICS drive, or 0.2 kW at 1500 rpm from a 200-240 V drive — the two-tap rating reflects the same winding driven from different bus rails, not two different windings. A holding brake is fitted and the housing carries IP64 protection, which means the body is dust-tight and resists splashing water from any direction but is not rated for washdown or submerged duty — mounting inside an enclosure or a sheltered machine frame keeps it inside its sealing envelope. The motor carries an absolute encoder AM22DQC (22-bit single-turn plus 12-bit multi-turn) and lands on the drive through a DRIVE-CLiQ plug M17, with a separate size M17 power connector — the digital feedback cable carries the encoder, motor temperature and electronic nameplate over one twisted pair, so commissioning the SINAMICS side is plug-and-configure once the topology is read. Lifecycle reads as active and the product class is built-to-order per piece — orders are placed against the BOM, not pulled from finished stock.
Mechanical fit and shaft detail
The shaft is cylindrical D19 × 40 mm — a plain, unkeyed stub that pairs with a clamp collar or a zero-backlash coupling on the gearbox or ballscrew input, which is the standard pattern for this size of S-1FK2 HD frame.
Compliance posture for a kitting pack
Export control is logged as AL: N / ECCN: N_CNDU, meaning no special licence routing is triggered for typical industrial shipments — the part moves through normal commercial export without a dual-use screening flag.
Sourcing posture for a line-down spare
The catalog trail — group code R220, product group 9021, ordering-data family — is what Siemens' own ordering system keys off; quoting with those codes on the RFQ keeps the order in the correct production lane and avoids a mis-routed substitution.