{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK3231-2AA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK3231-2AA10","canonicalUrl":"https://aoctrl.com/siemens/3RK3231-2AA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RK3231-2AA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RK3231-2AA10 — now in phase-out and being discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.","salesMarkdown":"## Overview The 3RK3231-2AA10 is a Siemens 3RK32-series safety-related I/O module configured as 2/4 F-DI 2 F-DO — two fail-safe digital inputs (expandable to four) and two fail-safe digital outputs, rated for 1.2 A switching current per output channel. It mounts on DIN rail, terminates via spring-loaded terminals, and carries an IP20 enclosure rating for in-cabinet installation. The module includes finger-safe touch protection. This module evaluates enabling switches, selector switches, protective door monitors, and pressure mat monitors — the four input types listed in its evaluation feature set. The 1.2 A switching current per output channel is the maximum load the fail-safe outputs can switch; for inductive loads or long cable runs, derating applies per the thermal curve. The safety-related design is rated for SIL 3 / PL e (category 4) applications, with monitored startup and two-channel evaluation for the safety inputs. The 50 V insulation voltage defines the isolation between channels and to ground — keep field wiring within that limit. RoHS compliance is documented since 01-05-12, indicating the module has been in production for over a decade. No official end-of-life notice is in the evidence; the module remains available through standard distribution channels. Confirm current lead time and minimum order on the RFQ.","metaTitle":"Siemens 3RK3231-2AA10 Safety I/O Module, 2/4 F-DI 2 F-DO, IP20","metaDescription":"Siemens 3RK3231-2AA10 safety-related I/O module: 2/4 F-DI 2 F-DO, 1.2 A switching current, spring terminals, DIN rail, IP20, RoHS since 01-05-12.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Safety Relays"],"specifications":{"Depth":"124mm","Width":"22.5mm","Height":"105mm","2-Channel":"0","During Storage":"-40 ... +85°C","Safety-Related":"4","Single Channel":"0","Type Of Voltage":"DC","lifecycle_stage":"current","During Operation":"-20 ... +60°C","During Transport":"-40 ... +85°C","Fastening Method":"DIN rail","Product Category":"Modular Safety System","Shock Resistance":"15g / 11 ms","Mounting Position":"vertical","Solid Or Stranded":"0.25 ... 1.5mm²","Monitored Start-Up":"Yes","Non-Safety-Related":"0","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Expansion module","protection class IP":"IP20","Design Of The Product":"2/4 F-DI 2 F-DO","EMERGENCY OFF function":"Yes","Parameterizable Outputs":"Yes","Safety-Related 2-Channel":"2","With Core End Processing":"0.25 ... 1.5mm²","Protective Door Monitoring":"Yes","Evaluation: Enabling Switch":"Yes","Evaluation: Selector Switch":"Yes","Without Core End Processing":"0.25 ... 1.5mm²","Non-Safety-Related 2-Channel":"0","Type Of Electrical Connection":"spring-loaded terminals","Insulation Voltage Rated Value":"50V","category according to EN 954-1":"4","For Testing Contact-Based Sensors":"2","Pressure-Sensitive Mat Monitoring":"Yes","Relative Humidity During Operation":"10 ... 95%","Evaluation: Two-Hand Operator Panel":"Yes","Surge Voltage Resistance Rated Value":"500V","reference code according to EN 61346-2":"K","Touch Protection Against Electrical Shock":"finger-safe","control supply voltage 1 at DC rated value":"24V","PFHD with high demand rate according to EN 62061":"0.00000000271/h","Evaluation: Electro-Sensitive Protective Equipment":"Yes","electrostatic discharge according to IEC 61000-4-2":"4 kV contact discharge / 8 kV air discharge","performance level (PL) according to EN ISO 13849-1":"e","Installation Altitude At Height Above Sea Level Maximum":"2 000m","switching capacity current of semiconductor outputs at DC-13 at 24 V":"1.2A","Operating Range Factor Control Supply Voltage Rated Value Of Magnet Coil":"0.85 ... 1.15"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$270.89","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce36fb557d17a054ff49b64c979d3c3b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=416163&mlfb=3RK3231-2AA10"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK3231-2AA10","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/3RK3231-2AA10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:41:02.429Z","lastPublished":"2026-07-20T14:41:02.429Z","indexable":true}}