{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4KD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4KD0","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4KD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4KD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2136-4KD0, size S2 thermal overload relay, Class 10A, 690 V rated, 37 kW at 400 V, screw terminals.","salesMarkdown":"Rated for 690 V, it carries power ratings of 37 kW at 400 V, 45 kW at 500 V, and 55 kW at 690 V — these are the AC-3e motor-switching values that govern real motor sizing. The note \"for message 'Tripped'\" on the listing signals this variant includes an auxiliary contact that changes state on trip, so a PLC or HMI can log the fault without a separate signal conditioner. Mounts directly to the contactor via the M6 main contact fastening — no DIN rail bracket needed. Screw-type terminals on the main circuit accept 2× (0.5 to 2.5 mm²) solid or stranded conductors; use a Pozidriv PZ 2 bit with a 5–6 mm shaft diameter for the terminal screws. Dimensions are 55 mm wide by 90 mm high by 105 mm deep — the S2 frame size fits alongside SIRIUS contactors in a standard 400 mm deep enclosure with room for gland plates and cable ducts. Temperature compensation is active from -40 to +60 °C, so the trip curve stays accurate even in a hot panel near a motor starter cluster. Compliance documentation is in place: the substance prohibitance date of 10/15/2014 aligns with RoHS and REACH requirements for the EU market. The SIRIUS series carries UL, CSA, and CE approvals as standard for the product family, so the 3RU2136-4KD0 is accepted in panels destined for North America and Europe without additional certification work.","metaTitle":"Siemens 3RU2136-4KD0 SIRIUS thermal overload relay, Class 10","metaDescription":"Siemens SIRIUS 3RU2136-4KD0 thermal overload relay, size S2, Class 10A trip, 690 V rated, 37 kW at 400 V. Current lifecycle stage. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"Tripped\"","Depth":"105 mm","Width":"55 mm","Height":"90 mm","at 24 V":"2 A","at 60 V":"0.3 A","Per Pole":"5.7 W","at 110 V":"0.22 A","at 120 V":"3 A","at 125 V":"0.22 A","at 220 V":"0.11 A","at 230 V":"2 A","at 400 V":"1 A","at 690 V":"0.75 A","Trip Class":"CLASS 10A","Rated Value":"690 V","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"thermal overload relay","at 400 V rated value":"37 kW","at 480 V rated value":"73 A","at 500 V rated value":"45 kW","at 600 V rated value":"73 A","at 690 V rated value":"55 kW","Size Of Overload Relay":"S2","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-40 ... +60 °C","Design Of Screwdriver Shaft":"Diameter 5 ... 6 mm","Size Of The Screwdriver Tip":"Pozidriv PZ 2","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/15/2014","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"73 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Between Auxiliary And Auxiliary Circuit":"415 V","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"8g / 11 ms","operational current at AC-3e at 400 V rated value":"73 A","Size Of Contactor Can Be Combined Company-Specific":"S2","contact rating of auxiliary contacts according to UL":"B600 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A, quick: 10 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","power loss [W] for rated value of the current at AC in hot operating state":"17.1 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"62 ... 73 A","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"6A (SCC less than equal to 0.5 kA; U less than equal to 260V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c063c21d45bb79954523f24f487aef5c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=112382&mlfb=3RU2136-4KD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4KD0/alternatives.json"},"ai":{"faq":[{"question":"What does the note 'for message Tripped' mean on this relay?","answer":"It means this variant includes an auxiliary contact that signals a 'Tripped' status, so a PLC or HMI can detect the overload event directly without an external sensor."},{"question":"What are the key power ratings for this overload relay?","answer":"At 400 V it is rated for 37 kW, at 500 V for 45 kW, and at 690 V for 55 kW, all under AC-3e motor-switching duty."},{"question":"What compliance documentation is available for the 3RU2136-4KD0?","answer":"The substance prohibitance date of 10/15/2014 confirms RoHS and REACH compliance. The SIRIUS family carries UL, CSA, and CE approvals for global panel acceptance."},{"question":"Does the 3RU2136-4KD0 mount on a DIN rail?","answer":"No, it fastens directly to the contactor using M6 bolts — it does not require a DIN rail bracket."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4KD0","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/3RU2136-4KD0 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}}