{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1903-0AK10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1903-0AK10","canonicalUrl":"https://aoctrl.com/siemens/3RK1903-0AK10","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1903-0AK10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RK1903-0AK10, 65 mm terminal module for ET200S High Feature DOL starter, direct soft starter without supply line connection, current lifecycle stage.","salesMarkdown":"The Siemens 3RK1903-0AK10 is a 65 mm terminal module purpose-built for the ET200S High Feature DOL starter family. It serves as the wiring interface between the distributed I/O backplane and a direct soft starter — no separate supply line connection needed, meaning it draws power and comms through the ET200S rail itself. This keeps the cabinet wiring clean and the footprint tight: one module width, no extra feed terminals. It occupies exactly one 65 mm slot in the ET200S station, so the panel fill factor is predictable: you can calculate how many starter modules fit per meter of rail. The direct soft starter variant means it handles motor starting without the mechanical wear of a contactor — good for frequent start/stop cycles on conveyors or pumps where you want controlled acceleration.","metaTitle":"Siemens 3RK1903-0AK10 ET200S Terminal Module, 65 mm, Current","metaDescription":"Siemens 3RK1903-0AK10 65 mm terminal module for ET200S High Feature DOL starter. Current lifecycle stage. RoHS compliance date 05/01/2012. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"lifecycle_stage":"current","Substance Prohibitance (Date)":"05/01/2012"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2506c84bc50fd54eb200b0e325c9c833.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=109944&mlfb=3RK1903-0AK10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1903-0AK10/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this part carry?","answer":"The substance prohibitance date of 05/01/2012 confirms RoHS compliance as of that directive revision. The part is a Siemens SIRIUS branded module designed for the ET200S system, which carries CE and UL recognition at the system level."},{"question":"Will 3RK1903-0AK10 drop into a panel specified around 3RT6023-1BW40?","answer":"No — these are different product classes. The 3RK1903-0AK10 is a terminal module for the ET200S distributed starter system (DIN-rail mounted, backplane-connected). The 3RT6023-1BW40 is a standalone SIRIUS contactor with screw terminals. They serve different wiring topologies and are not mechanically interchangeable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1903-0AK10","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/3RK1903-0AK10 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}}