{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1901-1DE12-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1901-1DE12-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1901-1DE12-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1901-1DE12-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RK1901-1DE12-1AA0 SlimLine S22.5 single data decoupling module, 22.5 mm width, IP20, for AS-Interface networks, 21-32 V DC input.","salesMarkdown":"## What this module does on an AS-i line The 3RK1901-1DE12-1AA0 is a single data decoupling module designed to separate the data and power on an AS-Interface network. It sits in the IP20 control cabinet, 22.5 mm wide on a 35 mm DIN rail or wall-mounted with plug-in flaps. It handles both grounded and non-grounded AS-i networks, includes ground fault detection, and is suitable for safety-related circuits. The module supplies up to 120 W of active power, drawing a maximum of 4.1 A at the input and delivering up to 4 A at the output. ## Wiring and terminal capacity Solid wire connections accept 1x (0.5 to 4 mm²) or 2x (0.5 to 2.5 mm²). With ferrule processing, the range narrows to 1x (0.5 to 2.5 mm²) or 2x (0.5 to 1.5 mm²). AWG for auxiliary contacts is 2x (20 to 14). The module operates on 21 to 32 V DC input, with an electronic short-circuit protection design. Outputs are short-circuit proof, and the signaling contacts include a test function. ## Environmental limits and mounting Operating temperature range is -25 to +70 °C, with storage from -40 to +85 °C. Mounting position is vertical, and the module measures 121.2 mm deep by 101.3 mm high by 22.5 mm wide. The SlimLine S22.5 form factor is designed for dense cabinet layouts where space is tight. The 22.5 mm width matches standard terminal block spacing for clean rail organization. ## Contact ratings and reset behavior Auxiliary contacts are rated 3 A at AC-15 at 24 V and 1 A at DC-13 at 24 V. The module supports both external reset and a reset function, but does not have auto-reset capability. Status is indicated via LED display, and the module supports AS-Interface protocol with one output for AS-i maximum.","metaTitle":"Siemens 3RK1901-1DE12-1AA0 AS-i Data Decoupling Module","metaDescription":"Siemens 3RK1901-1DE12-1AA0 single data decoupling module for AS-Interface networks. Active production, IP20, 22.5mm SlimLine. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"121.2mm","Solid":"1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)","Width":"22.5mm","title":"3RK1901-1DE12-1AA0","Height":"101.3mm","auto-RESET":"No","Rated Value":"21 ... 32V","description":"AS-i data decoupler 1 x 4 A Screw terminals, AS-i single Data decoupling module IP20, SlimLine S22.5 Screw terminals Overall width module 22.5 mm IN: 24 V / 30 V DC OUT: 1 x AS-i, 4 A Integrated overload protection Integrated ground fault detection Signaling contact Remote reset","During Storage":"-40 ... +85°C","External Reset":"Yes","Reset Function":"yes","lifecycle_stage":"current","During Operation":"-25 ... +70°C","Fastening Method":"35-mm DIN rail mounting or wall mounting with plug-in flaps","at AC-15 at 24 V":"3A","at DC-13 at 24 V":"1A","Mounting Position":"vertical","2 at DC rated value":"24V","Product Designation":"Single data decoupling module","protection class IP":"IP20","Of The Input Voltage":"DC","Design Of The Product":"SlimLine S22.5 - Module to beused in the IP20 control cabinet","Of The Input Voltages":"DC","Supplied Active Power":"120W","Ground Fault Detection":"Yes","With Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","suitable for AS-i Power24V":"Yes","input current at DC maximum":"4.1A","AS-Interface data decoupling":"Yes","output current at DC maximum":"4A","Sequential Connected Time-Delay":"No","Design Of Short-Circuit Protection":"electronic","Test Function Of Signaling Contacts":"Yes","suitable for grounded AS-i networks":"Yes","at AWG cables for auxiliary contacts":"2x (20 ... 14)","adapted for non-grounded AS-i networks":"Yes","reference code according to EN 61346-2":"A","display version as status display by LED":"yes","Property Of The Output Short-Circuit Proof":"Yes","number of outputs for AS-Interface maximum":"1","Suitability For Use Safety-Related Circuits":"Yes","protocol is supported AS-Interface protocol":"Yes","relative humidity at 25 °C during operation maximum":"70%","Number Of Electrical Connections For Signaling Contact":"2","Installation Altitude At Height Above Sea Level Maximum":"2 000m","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","number of switching contacts as NO contact for signaling function":"1","design of the switching contact as NO contact for signaling function":"yes","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","Mechanical Service Life (Operating Cycles) Of The Signaling Contacts Typical":"1 000 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.5 ... 4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=350448&mlfb=3RK1901-1DE12-1AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1901-1DE12-1AA0","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/3RK1901-1DE12-1AA0 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}}