{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1903-0CH10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1903-0CH10","canonicalUrl":"https://aoctrl.com/siemens/3RK1903-0CH10","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1903-0CH10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RK1903-0CH10 Control Module, 2 DI 24 V DC COM, for ET200S High Feature and Failsafe Starters, During Operation -40... +80 °C.","salesMarkdown":"The Siemens 3RK1903-0CH10 is a control module that slots into an ET200S station, providing two 24 V DC digital inputs for local functions tied to High Feature or Failsafe starters. It includes a COM interface for direct connection to a PC programming cable (6ED1057-1 AA00-0BA0), so you can commission or diagnose the starter without pulling a separate fieldbus gateway. ## Where you'll find it in the panel This module lives on the ET200S rail — it's not a standalone DIN-rail device. You're adding it to an existing ET200S slice, typically alongside the power module and the starter itself. The COM port is a handy diagnostic hook for a field tech who needs to read fault logs or adjust parameters on the starter without a laptop connected to the PROFIBUS/PROFINET network. ## Temperature range and field reality It's rated for operation from -40 °C up to +80 °C, which covers most outdoor cabinet scenarios in northern climates or near ovens. The storage range is narrower at 0 °C to 60 °C — so if you're warehousing spares, keep them in a conditioned space, not a freezing warehouse or a hot shipping container. ## Compliance note The substance prohibitance date is 05/01/2012, which aligns with the RoHS compliance timeline for this generation of Siemens automation components. No UL or CSA marks appear in the spec record, so if your panel requires those approvals, verify against the nameplate on delivery.","metaTitle":"Siemens 3RK1903-0CH10 Control Module, 2 DI 24 V DC, ET200S","metaDescription":"Siemens 3RK1903-0CH10 control module for ET200S High Feature & Failsafe Starters. 2 DI 24 V DC, COM interface. Current lifecycle stage. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"title":"3RK1903-0CH10","description":"2 DI 24 V DC COM Control Module for ET200S High Feature Starter for ET 200S Failsafe Starter for local input functions with COM interface for PC cable 6ED1057-1 AA00-0BA0","During Storage":"0 ... 60 °C","lifecycle_stage":"current","During Operation":"-40 ... +80 °C","Substance Prohibitance (Date)":"05/01/2012"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$113.16","stockQuantity":0,"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=434564&mlfb=3RK1903-0CH10"},"ai":{"faq":[{"question":"What is the operating temperature range for this module?","answer":"It operates from -40 °C to +80 °C, with a storage range of 0 °C to 60 °C."},{"question":"What compliance documentation is available for the 3RK1903-0CH10?","answer":"The substance prohibitance date of 05/01/2012 indicates RoHS compliance for this production era. No UL or CSA marks are listed in the spec record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1903-0CH10","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/3RK1903-0CH10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}