{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1901-1NR22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1901-1NR22","canonicalUrl":"https://aoctrl.com/siemens/3RK1901-1NR22","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1901-1NR22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens AS-Interface accessories, 3RK1901-1NR22, AS-i M12 branch with Uaux, 2 m cable, IP67/68/69K, max. 4 A.","salesMarkdown":"The 3RK1901-1NR22 is an AS-Interface accessory — specifically an M12 branch that transitions the AS-i flat cable into an M12 connector with both AS-i power and auxiliary power (Uaux) carried through. It comes with a 2 m cable and an angled M12 socket, pre-wired for a clean drop from the trunk line. The IP67/68/69K rating means the body and the M12 connection survive washdown environments — food-and-bev lines, outdoor conveyor sections, anywhere you hose the gear down. The screw fixing lets you mount it to a bracket or panel, keeping the branch off the cable tray. Rated for 4 A max load current on the contacts — that's the total through the M12 socket, so size your downstream sensors or actuators accordingly. The operating voltage range is 26.5 to 31.6 V, per the AS-Interface specification, which covers the standard AS-i bus voltage plus a little headroom. The pin assignment on the M12 socket is: 1 = AS-i +, 2 = Uaux -, 3 = AS-i -, 4 = Uaux +. If you're wiring a device that needs both AS-i power and a separate auxiliary supply, this branch handles both in one connector — no extra junction box needed. One note from the spec: the cable must not end in the feeder. That means this branch is a tap off the flat cable, not a termination point — the trunk line continues past this drop.","metaTitle":"3RK1901-1NR22 AS-Interface M12 Branch, IP67/68/69K, 4A","metaDescription":"Siemens 3RK1901-1NR22 AS-Interface M12 branch cable, IP67/68/69K, 4A max. Active production. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Note":"cable must not end in the feeder","title":"3RK1901-1NR22","Function":"AS-i flat cable transition to M12","Connection":"M12 cable box 2 m","description":"AS-Interface M12 branch U_ASI and Uaux, 2 m cable with M12 cable socket angled IP67/68/69K, max. 4 A","Type of device":"AS-Interface accessories","lifecycle_stage":"current","Type of mounting":"screw fixing","Ambient Temperature":"-25 ... +75°C","Degree Of Protection":"IP67/68/69K","Design Of The Product":"AS-i M12 feeder, AS-i with Uaux, 2 m cable","Contacts Load rating max":"4A","Inputs socket assignment":"1 = AS-i \"+\" 2 = Uaux \"-\" 3=AS-i \"-\" 4 = Uaux \"+\"","Type Of Electrical Connection":"insulation piercing method for AS-Interface flat cable","Ambient Temperature During Storage":"-25 ... +85°C","operating voltage according to AS-Interface spezification":"26.5 ... 31.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$32.61","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=244795&mlfb=3RK1901-1NR22"},"ai":{"faq":[{"question":"What does the note 'cable must not end in the feeder' mean?","answer":"It means this M12 branch is a tap off the AS-i flat cable, not a termination point. The trunk line must continue past this drop — you cannot use it as the end-of-line terminator."},{"question":"What is the function of the 3RK1901-1NR22?","answer":"It's an AS-Interface M12 branch that transitions from the AS-i flat cable to an M12 connector, carrying both AS-i power and auxiliary power (Uaux) through a single 2 m cable with an angled M12 socket."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1901-1NR22","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/3RK1901-1NR22 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}}