{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1901-1MX01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1901-1MX01","canonicalUrl":"https://aoctrl.com/siemens/3RK1901-1MX01","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1901-1MX01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS AS-Interface Extension Plug Plus, 3RK1901-1MX01, A/B slave, IP67, 15 mA draw, operating voltage 26.5–31.6 V.","salesMarkdown":"The Siemens 3RK1901-1MX01 is an AS-Interface Extension Plug Plus — a powered repeater that doubles the cable run to 200 m per AS-i segment while embedding an A/B slave for line diagnostics. It draws 15 mA from the AS-i bus (26.5–31.6 V) and is rated IP67, so it lives directly on the machine frame or in a washdown zone without an enclosure. The integrated slave reports undervoltage conditions on two inputs: IN3 flags a drop longer than 50 ms, IN4 catches anything over 5 ms — useful for tracing intermittent supply dips on a long bus. ## Deployment context The Extension Plug Plus connects via an AS-Interface M12 feeder (3RX9801-0AA00, ordered separately) and sits inline on the AS-i yellow cable. IP67 lets it mount directly on a conveyor frame or robot cell without a panel — the housing and connectors handle washdown. The integrated slave means you get diagnostic data (undervoltage, communication health) back through the AS-i master without a separate gateway. ## I/O configuration and diagnostics Configured as an A/B slave with I/O configuration B. OUT1 (D0) is not required; OUT2 (D1) sets the switching threshold — 26.5 V or 23 V, selected by the slave's parameterization bit. IN3 (D2) reports undervoltage > 50 ms; IN4 (D3) reports undervoltage > 5 ms. The polarity reversal protection is built in.","metaTitle":"Siemens 3RK1901-1MX01 AS-Interface Extension Plug Plus, IP67","metaDescription":"Siemens 3RK1901-1MX01 AS-Interface Extension Plug Plus. IP67, phased-out product. Sourced to order against RFQ. Includes undervoltage diagnostics on IN3/IN4.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"D0":"OUT1","D1":"OUT2","D2":"IN3","D3":"IN4","IN3":"undervoltage evaluation: D2 = 0: Undervoltage > 50 ms D2 = 1: No undervoltage","IN4":"undervoltage evaluation: D3 = 0: Undervoltage > 5 ms D3 = 1: No undervoltage","Out1":"not required","Out2":"switching threshold parameterization: D1 = 0: Switching threshold 26. 5 V D1 = 1 : Switching threshold 23 V","PIN1":"U AS-Interface +","PIN3":"U AS-Interface -","title":"3RK1901-1MX01","ID/ID2 code":"I/O","description":"AS-i Extension Plug Plus Phased-out product!!! For further information, please contact our sales department Doubling of the cable length to 200 m pro AS-i Segment with integrated slave for diagnostics Degree of protection IP67 Connection via AS-Interface M12 branch 3RX9801-0AA00 must be ordered separately","lifecycle_stage":"current","I/O configuration":"B","protection class IP":"IP67","Design Of The Product":"AS-Interface Extension Plug Plus","Total Current Input Max":"15mA","Design Of The Slave Type":"A/B slave","Voltage supply using AS-Interface":"Yes","Ambient Temperature During Operation":"-25 ... +85°C","design of the AS-Interface connection":"Connection via AS-Interface M12 feeder 3RX9801-0AA00","Connection Polarity reversal protection":"yes","operating voltage according to AS-Interface specification":"26.5 ... 31.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$95.25","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=440608&mlfb=3RK1901-1MX01"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RK1901-1MX01?","answer":"Submit an RFQ. The part is sourced through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is 3RK1901-1MX01's listed D0 (OUT1)?","answer":"OUT1 is listed as 'not required' — it is not used in this configuration."},{"question":"Will 3RK1901-1MX01 drop into a panel specified around 3RT1017-1AP04-3MA0 without rewiring?","answer":"No. 3RT1017-1AP04-3MA0 is a SIRIUS power contactor with screw terminals and a 45 mm width; 3RK1901-1MX01 is an AS-i extension plug with an M12 connector. Different form factor, different wiring — no direct drop-in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1901-1MX01","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/3RK1901-1MX01 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}}