{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6SL3210-1KE23-8UB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6SL3210-1KE23-8UB0","canonicalUrl":"https://aoctrl.com/siemens/6SL3210-1KE23-8UB0","factsUrl":"https://aoctrl.com/api/mcp/products/6SL3210-1KE23-8UB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SINAMICS G120C, 6SL3210-1KE23-8UB0, 18.5 kW rated power with 150% overload for 3 seconds, 380-480 V 3AC input, IP20, integrated Safe Torque-Off, USS/MODBUS RTU fieldbus.","salesMarkdown":"## Drive selection memo — the 18.5 kW G120C with STO The Siemens 6SL3210-1KE23-8UB0 is a SINAMICS G120C compact drive rated for 18.5 kW output with a 150% overload capability for 3 seconds, sized for a standard 4-pole induction motor on a 380-480 V 3-phase supply. The unfiltered input stage accepts 380-480 V 3AC +10/-20% at 47-63 Hz, so it suits European and North American line voltages without a step-down transformer. Integrated Safe Torque-Off (STO) is built in — no separate safety module required for the stop function, which simplifies the safety circuit and reduces panel wiring. The onboard I/O gives 6 digital inputs, 2 digital outputs, 1 analog input, and 1 analog output, enough for basic speed/start-stop control without an expansion card. Fieldbus is USS/MODBUS RTU over the integrated RS-485 port; for PROFINET or EtherNet/IP you would add a communication board. ## Safety integration — STO without a separate card Safe Torque-Off is integrated on the power stage, not as an option slot. That means the drive itself provides the SIL 3 / PL e stop function per IEC 61800-5-2, removing a safety relay or a separate safety module from the panel for the torque-off channel. For a commissioning engineer, this reduces the wiring check: the STO input is a fail-safe 24 V DC loop that must be proven before the drive enables power. The rest of the safety function (gate guarding, light curtain, E-stop button) still needs its own logic, but the drive's STO covers the motor disable. No external contactor is required for that one function, though for full isolation during maintenance a line-side contactor is still standard practice.","metaTitle":"Siemens 6SL3210-1KE23-8UB0 SINAMICS G120C, 18.5kW, STO","metaDescription":"Siemens SINAMICS G120C drive 6SL3210-1KE23-8UB0, 18.5kW at 150% overload, 380-480V 3AC, integrated Safe Torque-Off, USS/MODBUS RTU, lifecycle stage mature. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drives (VFD)"],"specifications":{"lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cfc679bb6584a136b7edfb2519b7b1ce.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=401559&mlfb=6SL3210-1KE23-8UB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6SL3210-1KE23-8UB0/alternatives.json"},"ai":{"faq":[{"question":"What is the rated power and overload of the 6SL3210-1KE23-8UB0?","answer":"Rated power is 18.5 kW with a 150% overload capability for 3 seconds, on a 380-480 V 3-phase supply. The drive is unfiltered and includes integrated Safe Torque-Off."},{"question":"Where can I buy or get a quote for 6SL3210-1KE23-8UB0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for a firm price and lead time; availability is confirmed at quote time."},{"question":"What fieldbus protocol does the 6SL3210-1KE23-8UB0 support out of the box?","answer":"The drive integrates USS/MODBUS RTU on the RS-485 port. For other fieldbuses (PROFINET, EtherNet/IP, PROFIBUS) a communication module must be added."},{"question":"Does the 6SL3210-1KE23-8UB0 include Safe Torque-Off?","answer":"Yes, Safe Torque-Off (STO) is integrated on the power stage, providing a SIL 3 / PL e stop function per IEC 61800-5-2 without requiring a separate safety module or contactor for the torque-off channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6SL3210-1KE23-8UB0","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/6SL3210-1KE23-8UB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}