{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1FK2104-5AK11-1MB0","brand":"Siemens","brandSlug":"siemens","productSlug":"1FK2104-5AK11-1MB0","canonicalUrl":"https://aoctrl.com/siemens/1FK2104-5AK11-1MB0","factsUrl":"https://aoctrl.com/api/mcp/products/1FK2104-5AK11-1MB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 1FK2 servomotors for SINAMICS S120 family servo motor with holding brake, M0=2.4 Nm, PN=1.07 kW at nN=6000 rpm, IP65, DRIVE-CLiQ M17 plug, power connector M17, 1 piece.","salesMarkdown":"## What the 1FK2104-5AK11-1MB0 is, in one paragraph The 1FK2104-5AK11-1MB0 is a Siemens SIMOTICS S-1FK2 HD servo motor from the 1FK2 family, intended for pairing with the SINAMICS S120 drive line via the DRIVE-CLiQ M17 plug and the M17 power connector. It is a M0=2.4 Nm high-dynamics servomotor with an integrated holding brake — the kind of unit that holds a vertical axis in place when the drive is de-energised, so a stopped machine does not drop its load before the mechanical brake engages. Lifecycle stage is recorded as current on the order code, and the product is classed as made-to-order — that class C designation means each unit is built against the BOM rather than pulled from a finished-goods shelf, which is why sourcing flows through quotation rather than pick-and-ship. ## Headline ratings and what they actually decide The continuous torque floor M0=2.4 Nm sets the sizing basis; PN=1.07 kW at nN=6000 rpm on the 380–480 V rail, and PN=0.75 kW at nN=3000 rpm on the 200–240 V rail, so the same shaft frame works on both common industrial mains voltages without a rewind. The dual rating is a deployment convenience — the drive parameter set is what selects the operating point, not the motor. IP65 on the housing means the motor body withstands low-pressure water jets and dust ingress — washdown-capable in food-and-bev or machine-tool cells, though it is not a fully submerged rating and should not be specified for IP67/IP68 duties. The shaft is D19×40 mm with feather key, matched to the standard 1FK2 coupling footprint; the encoder is the 22-bit single-turn plus 12-bit multi-turn absolute unit (AM22DQC), so position survives a power cycle without re-homing. ## Integration into a SINAMICS S120 panel The DRIVE-CLiQ M17 plug carries the encoder feedback and electronic nameplate to the S120 control module — auto-configuration in STARTER or Startdrive pulls the motor parameters from the encoder memory, so a swap on a commissioned axis restores the tuning set without a manual parameter re-entry. The M17 power connector on the motor side carries the phase leads; on the panel side, sizing it to the S120 Motor Module's rated output and the cable length's voltage-drop budget is the integrator's call, not the motor's. Because the unit carries a holding brake, the brake release contact is wired through the drive's brake control output — a mis-wired brake (energised when the drive expects it released, or vice versa) is the single most common field fault on this family. Verify the brake logic against the SINAMICS commissioning diagram before the first enable, not after the first drop. ## Compliance and documentation posture The motor has been RoHS-compliant since 01-07-06 and carries the REACH Article 33 duty-to-inform disclosure for current candidate-list substances. No additional regional certifications (UL, CSA, CE) are recorded on the order-code listing — those follow from the SINAMICS S120 system's approvals rather than the motor's own certificate set, and the integrator's declaration of conformity covers the assembled machine. ## Ordering and BOM-fit Orderable as one piece per packaging unit, Group Code R220 within Product Group 9021. Because the unit is class C made-to-order and the SINAMICS drive system tuning is calibrated to the encoder's electronic nameplate, an unqualified substitution is not a BOM swap — it is a re-commissioning job. For multi-axis builds, lock the order code across all axes before release — a mid-build variant change resets every axis's auto-commissioning parameters.","metaTitle":"Siemens 1FK2104-5AK11-1MB0 Servo Motor with Brake, 2.4 Nm","metaDescription":"Siemens 1FK2104-5AK11-1MB0 SIMOTICS S-1FK2 HD servo motor, 2.4 Nm, 1.07 kW at 6000 rpm, IP65, holding brake, DRIVE-CLiQ M17.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Servo Motors with Brake"],"specifications":{"title":"1FK2104-5AK11-1MB0","Group Code":"R220","description":"SIMOTICS S-1FK2 HD servo motor M0=2.4 Nm; PN = 1.07 kW at nN=6000 rpm (380-480 V); PN = 0.75 kW at nN=3000 rpm (200-240 V); with holding brake; degree of protection IP65; shaft D19x40 mm with feather key; absolute encoder 22-bit + 12-bit multiturn (encoder AM22DQC); with DRIVE-CLiQ plug M17; power connector size M17;","Product Group":"9021","Product class":"C: products manufactured / produced to order, which cannot be reused or re-utilized or be returned against credit.","Quantity Unit":"1 Piece","Product Family":"1FK2 servomotors for SINAMICS S120","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N_CNDU","Packaging dimensions (L x W x H)":"452.00 x 250.00 x 267.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-07-06","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0d4f865fcfa8b54cecd0fbe3ae8261f8.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/1FK2104-5AK11-1MB0?tree=CatalogTree"},"ai":{"faq":[{"question":"Who supplies 1FK2104-5AK11-1MB0 and how is it quoted?","answer":"Independent industrial-automation distribution carries the line."},{"question":"What compliance documentation does Siemens provide for 1FK2104-5AK11-1MB0?","answer":"RoHS compliance since 01-07-06, and the REACH Article 33 duty-to-inform disclosure for current candidate-list substances. No motor-level UL, CSA, or CE is recorded on the order-code listing — system-level approvals travel with the SINAMICS S120 drive assembly."},{"question":"What is the 1FK2104-5AK11-1MB0's listed group code and product group?","answer":"Group Code R220, Product Group 9021 — the standard ordering buckets for the 1FK2 servomotor line on the Siemens price list."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/1FK2104-5AK11-1MB0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/1FK2104-5AK11-1MB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}