{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RN2010-2BA30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RN2010-2BA30","canonicalUrl":"https://aoctrl.com/siemens/3RN2010-2BA30","factsUrl":"https://aoctrl.com/api/mcp/products/3RN2010-2BA30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RN2 thermistor motor protection relay, 3RN2010-2BA30, 24 V AC/DC rated supply, 1 A output at 24 V, auto-reset, IP20, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"The Siemens 3RN2010-2BA30 is a SIRIUS 3RN2 thermistor motor protection relay — a standard evaluation unit designed for bimetallic switch sensors. It monitors motor winding temperature via PTC thermistors and trips the output when the resistance threshold is crossed, protecting against overtemperature. Rated supply is 24 V AC/DC (50/60 Hz), and the relay provides a 1 A output at 24 V or 0.2 A at 125 V. It features automatic reset after the fault clears, with no external reset or error memory. IP20 protection suits clean, dry control cabinet environments. The 1 A at 24 V output is the relay contact rating for the load circuit — enough to drive a contactor coil or a small PLC input. At 125 V the rating drops to 0.2 A, so if you're switching a 125 VDC pilot light or valve, confirm the inrush stays under that. The response threshold is set by the thermistor loop: the relay trips when the PTC resistance exceeds the full-scale value of 1.1 (relative to the initial value of 0.85). That 9 % relative metering precision means the trip point is tight enough for reliable motor protection without nuisance trips. Substance prohibitance compliance is documented per the 05/28/2009 date — this covers RoHS and REACH requirements for the European market. No UL or IEC certification numbers are listed in the spec record, but the SIRIUS line typically carries IEC/EN 60947 approvals; verify with the datasheet for your specific application. Accepts solid or stranded wire from 20 to 12 AWG (0.5 to 2.5 mm²). The terminal layout is standard for the 22.5 mm housing; allow 0 mm clearance on all sides (up, down, forward, backward, sideways) per the spec — meaning it can be packed tight against other modules. Galvanic isolation exists between input and output, and between the outputs themselves — important for separating the thermistor loop from the control circuit. The LED display gives local status indication.","metaTitle":"Siemens 3RN2010-2BA30 SIRIUS Thermistor Motor Protection Rel","metaDescription":"Siemens SIRIUS 3RN2010-2BA30 thermistor motor protection relay, 24 V AC/DC, 1 A at 24 V, auto-reset, IP20, DIN-rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"Depth":"90 mm","Solid":"20 ... 12","Width":"22.5 mm","Height":"100 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Stranded":"20 ... 12","at 125 V":"0.2 A","Backwards":"0 mm","Downwards":"0 mm","auto-RESET":"Yes","At The Side":"0 mm","Rated Value":"24 ... 24 V","Error Memory":"No","Initial Value":"0.85","During Storage":"-40 ... +85 °C","External Reset":"No","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","Full-Scale Value":"1.1","Product Category":"SIRIUS 3RN2 thermistor motor protection","Product Function":"thermistor motor protection","Mounting Position":"any","Product Brand Name":"SIRIUS","Between The Outputs":"Yes","Degree Of Pollution":"3","Product Designation":"Thermistor motor protection relay","display version LED":"Yes","protection class IP":"IP20","at 50 Hz rated value":"24 ... 24 V","at 60 Hz rated value":"24 ... 24 V","for AWG cables solid":"20 ... 12","Design Of The Product":"Standard evaluation unit, suitable for bimetallic switch","for AWG cables stranded":"20 ... 12","Between Input And Output":"Yes","Relative Metering Precision":"9 %","Substance Prohibitance (Date)":"05/28/2009","Type Of Electrical Connection":"spring-loaded terminal (push-in)","Dynamic Open-Circuit Detection":"No","Material Of Switching Contacts":"AgSnO2","Operating Frequency Rated Value":"50 ... 60 Hz","For Auxiliary And Control Circuit":"spring-loaded terminals (push-in)","Design Of The Electrical Isolation":"galvanic isolation","Relative Humidity During Operation":"70 %","Surge Voltage Resistance Rated Value":"4 kV","due to burst according to IEC 61000-4-4":"2 kV (power ports) / 1 kV (signal ports)","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²","Finely Stranded Without Core End Processing":"0.5 ... 4 mm²","number of CO contacts for auxiliary contacts":"2","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","shock resistance according to IEC 60068-2-27":"11g / 15 ms","Between The Voltage Supply And Other Circuits":"No","Type Of Voltage Of The Control Supply Voltage":"AC/DC","vibration resistance according to IEC 60068-2-6":"10 ... 55 Hz: 0.35 mm","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Buffering Time In The Event Of Power Failure Minimum":"40 ms","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Thermal Current Of The Switching Element With Contacts Maximum":"5 A","continuous current of the DIAZED fuse link of the output relay":"6 A","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3RN2010-2BA30/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 3RN2010-2BA30?","answer":"The depth is 90 mm. The width is 22.5 mm and the height is 100 mm."},{"question":"What wire sizes does the 3RN2010-2BA30 accept?","answer":"It accepts solid or stranded wire from 20 to 12 AWG (0.5 to 2.5 mm²)."},{"question":"Does the 3RN2010-2BA30 have auto-reset?","answer":"Yes, it features automatic reset after the fault clears. There is no external reset and no error memory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RN2010-2BA30","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/3RN2010-2BA30 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}}