{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RN2000-2AA30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RN2000-2AA30","canonicalUrl":"https://aoctrl.com/siemens/3RN2000-2AA30","factsUrl":"https://aoctrl.com/api/mcp/products/3RN2000-2AA30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RN2 thermistor motor protection relay, 3RN2000-2AA30, 24 V AC/DC rated supply, 1 A switching at 24 V, spring-loaded terminals, IP20.","salesMarkdown":"The Siemens SIRIUS 3RN2000-2AA30 is a compact thermistor motor protection relay from the 3RN2 family, designed to monitor motor winding temperature via PTC thermistor sensors (bimetallic switch type). It's a dedicated evaluation unit — not a general-purpose overload relay — so it sits upstream of the contactor in the motor branch, tripping the coil when the thermistor circuit resistance rises above the threshold. Rated supply is 24 V AC/DC (50/60 Hz), and the output relay switches up to 1 A at 24 V or 0.2 A at 125 V — enough to drive a contactor coil or PLC input. The unit auto-resets when the winding cools, with no error memory, so it's suited for applications where a manual reset isn't required. Housing is 17.5 mm wide — one standard DIN-rail module — with push-in spring-cage terminals accepting 20–12 AWG solid or stranded wire. RoHS compliance date is May 28, 2009, so it meets the EU directive for current builds. No UL or CSA listing appears in the spec record, but the IP20 and pollution degree 3 ratings align with typical industrial panel requirements. ## Mounting & Wiring Notes The 17.5 mm width means it takes up one slot, leaving room for a contactor and overload block in the same row. Spring-cage terminals: strip 8 mm, push in, done. Solid or stranded 20–12 AWG fits without ferrules. The design requires terminal A1 to be jumpered with the root of the changeover contact for proper thermistor circuit sensing. An LED on the front gives visual trip indication — useful during commissioning or troubleshooting. Clearance: zero mm required upwards, downwards, forwards, backwards, and at the sides — so it can be packed tight against other devices without derating for airflow.","metaTitle":"Siemens 3RN2000-2AA30 SIRIUS Thermistor Motor Protection Rel","metaDescription":"Siemens SIRIUS 3RN2000-2AA30 thermistor motor protection relay, 24 V AC/DC, 1 A switching, IP20, spring-cage terminals. 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":"17.5 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","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":"Compact evaluation unit, suitable for bimetallic switch (terminal A1 jumpered with root of changeover contact)","for AWG cables stranded":"20 ... 12","Between Input And Output":"No","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":"without 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":"1","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/3RN2000-2AA30/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this thermistor relay?","answer":"Rated supply voltage is 24 V AC/DC (50/60 Hz). The output relay switches 1 A at 24 V or 0.2 A at 125 V. It auto-resets after a trip and has no error memory. The unit is 17.5 mm wide with push-in spring terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RN2000-2AA30","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/3RN2000-2AA30 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}}