{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RN2023-1DW30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RN2023-1DW30","canonicalUrl":"https://aoctrl.com/siemens/3RN2023-1DW30","factsUrl":"https://aoctrl.com/api/mcp/products/3RN2023-1DW30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RN2 thermistor motor protection relay, 3RN2023-1DW30, 24-240 VAC/DC, ATEX approved, 2 sensor circuits, open-circuit and short-circuit detection.","salesMarkdown":"The Siemens 3RN2023-1DW30 is a SIRIUS 3RN2 thermistor motor protection relay designed to monitor motor winding temperature via PTC thermistors. It features two independent sensor circuits for warning and disconnection, with open-circuit and short-circuit detection in both circuits, plus safe disconnection and non-volatile error memory. MTBF of 97 a and MTTFd of 303 a indicate a long service life under typical industrial conditions — the relay is built for continuous operation in motor control centers where downtime is costly. The 24 to 240 V AC/DC supply range covers most global control voltages, so no separate power supply module is needed for 24 V or 120 V panels. The relay includes ATEX approval and two sensor circuits, meaning it can monitor two separate PTC chains (e.g., one for alarm, one for trip) in hazardous-area motor applications. Open-circuit and short-circuit detection in both circuits ensures fault conditions are caught even if the sensor wiring is damaged. This class of thermistor motor protection relay is used in motor control panels for pumps, fans, conveyors, and compressors where winding overtemperature must be detected to prevent motor burnout. The ATEX variant suits Zone 1/21 motor circuits in oil & gas, chemical, or grain-handling environments.","metaTitle":"Siemens 3RN2023-1DW30 SIRIUS Thermistor Motor Protection Rel","metaDescription":"Siemens 3RN2023-1DW30 SIRIUS thermistor motor protection relay. ATEX approved, 2 sensor circuits, open-circuit and short-circuit detection. MTBF 97 a. DIN rail mount. Sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"MTBF":"97 a","Depth":"90 mm","MTTFd":"303 a","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","at 240 V":"0.2 ms","at 250 V":"0.1 A","Backwards":"0 mm","Downwards":"0 mm","auto-RESET":"Yes","At The Side":"0 mm","Rated Value":"24 ... 240 V","Error Memory":"Yes","Initial Value":"0.85","During Storage":"-40 ... +85 °C","External Reset":"Yes","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 ... 240 V","at 60 Hz rated value":"24 ... 240 V","for AWG cables solid":"1x (20 ... 12), 2x (20 ... 14)","Design Of The Product":"Standard evaluation unit with ATEX approval and 2 sensor circuits for warning and disconnection, open-circuit and short-circuit detection in both sensor circuits, safe disconnection, non-volatile","Between Input And Output":"Yes","Relative Metering Precision":"2 %","Safe failure fraction (SFF)":"74 %","Substance Prohibitance (Date)":"05/28/2009","Type Of Electrical Connection":"screw-type terminals","Dynamic Open-Circuit Detection":"Yes","Material Of Switching Contacts":"AgSnO2","Operating Frequency Rated Value":"50 ... 60 Hz","For Auxiliary And Control Circuit":"screw-type terminals","Design Of The Electrical Isolation":"Protective separation","Relative Humidity During Operation":"70 %","Surge Voltage Resistance Rated Value":"6 kV","category according to EN ISO 13849-1":"1","Between Control And Auxiliary Circuit":"300 V","Explosion Protection Category For Gas":"[Ex e] [Ex d] [Ex px]","Explosion Protection Category For Dust":"[Ex t] [Ex p]","Between Auxiliary And Auxiliary Circuit":"300 V","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 ... 4 mm²","average diagnostic coverage level (DCavg)":"18 %","Tightening Torque With Screw-Type Terminals":"0.6 ... 0.8 N·m","number of CO contacts for auxiliary contacts":"1","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"11g / 15 ms","Between The Voltage Supply And Other Circuits":"Yes","Type Of Voltage Of The Control Supply Voltage":"AC/DC","hardware fault tolerance according to IEC 61508":"0","vibration resistance according to IEC 60068-2-6":"10 ... 55 Hz: 0.35 mm","PFHD with high demand rate according to EN 62061":"3.76E-7 1/h","At Rate Of Recognizable Hazardous Failures (λDd)":"6.8E-8 1/h","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","PFDavg with low demand rate according to IEC 61508":"0.0041","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","performance level (PL) according to EN ISO 13849-1":"c","Buffering Time In The Event Of Power Failure Minimum":"30 ms","At Rate Of Non-Recognizable Hazardous Failures (λDu)":"3.08E-7 1/h","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/3RN2023-1DW30/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3RN2023-1DW30?","answer":"MTBF 97 a, MTTFd 303 a, rated supply voltage 24 to 240 V AC/DC, ATEX approved, two sensor circuits with open-circuit and short-circuit detection, IP20, screw and snap-on mounting on 35 mm DIN rail."},{"question":"Does the 3RN2023-1DW30 have ATEX approval?","answer":"Yes, the standard evaluation unit includes ATEX approval for use in potentially explosive atmospheres."},{"question":"What compliance documentation is available for the 3RN2023-1DW30?","answer":"The relay carries ATEX approval and is designed to meet IEC/EN standards for thermistor motor protection. For specific RoHS, REACH, UL, or IEC certificates, please request them with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RN2023-1DW30","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/3RN2023-1DW30 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}}