{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RN1012-2BM00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RN1012-2BM00","canonicalUrl":"https://aoctrl.com/siemens/3RN1012-2BM00","factsUrl":"https://aoctrl.com/api/mcp/products/3RN1012-2BM00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RN1012-2BM00 thermistor motor protection evaluation unit, 230 V AC, 22.5 mm, spring-loaded terminals, IP20.","salesMarkdown":"The Siemens 3RN1012-2BM00 is a thermistor motor protection evaluation unit from the SIRIUS 3RN1 series, designed to monitor motor winding temperature via PTC thermistors and trip the contactor when the motor overheats. It operates on a 230 V AC supply at both 50 and 60 Hz, and includes a reclosing lockout function that prevents automatic restart after a fault — important for applications where a manual reset is required for safety. The 3RN1012-2BM00 is a phased-out product. The preferred successor is the 3RN2012-2BW30, which offers the same thermistor motor protection function with manual/auto/remote selection and 2 W power consumption. No spare, no sleep: if you're holding a critical spare for a legacy motor starter, this is the one to keep in the cabinet. This evaluation unit is part of the motor feeder protection chain in industrial control panels — typically paired with a contactor and overload relay to protect motors against overtemperature caused by overload, blocked rotor, or cooling failure. The reclosing lockout ensures that after a thermal trip, the motor cannot restart until the fault is acknowledged, which is standard for conveyors, pumps, and compressors in process lines.","metaTitle":"Siemens 3RN1012-2BM00 Thermistor Motor Protection, 230 V AC,","metaDescription":"Siemens 3RN1012-2BM00 thermistor motor protection evaluation unit, 230 V AC, 22.5 mm width, spring-loaded terminals, IP20. Phased out; preferred successor 3RN2012-2BW30. Sourced to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Process / Temperature Controllers"],"specifications":{"Depth":"91 mm","Width":"22.5 mm","Height":"103 mm","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"screw and snap-on mounting","display version LED":"Yes","protection class IP":"IP20","at 50 Hz rated value":"230 V","at 60 Hz rated value":"230 V","Substance Prohibitance (Date)":"05/28/2009","Product Function Reclosing Lockout":"Yes","Ambient Temperature During Operation":"-25 ... +60 °C","reference code according to IEC 81346-2":"K","number of CO contacts for auxiliary contacts":"2","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","1 For Auxiliary And Control Circuit Rated Value":"50 Hz","2 For Auxiliary And Control Circuit Rated Value":"60 Hz","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded terminals"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3RN1012-2BM00/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions and mounting?","answer":"Width 22.5 mm, height 103 mm, depth 91 mm. It mounts on a standard DIN rail via screw and snap-on fastening, and uses spring-loaded terminals for wiring."},{"question":"What supply voltage does it require?","answer":"230 V AC at both 50 Hz and 60 Hz."},{"question":"Does it have a reclosing lockout function?","answer":"Yes, the 3RN1012-2BM00 includes a reclosing lockout, meaning it will not automatically reset after a trip — a manual reset is required, which is important for safety in motor protection applications."},{"question":"What compliance documentation is available?","answer":"The product carries a substance prohibitance date of 05/28/2009, indicating RoHS compliance. No UL, CSA, or CE marks are listed in the available specifications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RN1012-2BM00","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/3RN1012-2BM00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}