{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-1KD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-1KD0","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-1KD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-1KD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2136-1KD0 thermal overload relay, Size S2, Trip Class 10, rated 690 V, 5.5 kW at 400 V AC-3e, screw terminals, contactor mounting.","salesMarkdown":"The thermal bimetallic element tracks the motor's heating curve, so the relay follows the actual load rather than a fixed threshold. Rated insulation voltage is 690 V, with a 5.5 kW motor rating at 400 V AC-3e duty (the standard for squirrel-cage motors). The auxiliary switch is integrated — no separate add-on block needed for the trip indication or a remote reset circuit. The \"for message 'Tripped'\" note on the nameplate is a visual indicator that the relay has operated. When the bimetallic strip deflects, it pushes a mechanical flag — you see the word \"Tripped\" through a window on the front face. No need to meter the contacts; one glance tells you the starter needs a reset. ## Mounting and wiring in the panel Fastening method is contactor mounting — the relay clips directly onto the output side of a SIRIUS S2 contactor. This keeps the power wiring short and the assembly footprint tight. Main circuit terminals are screw-type, accepting 2 × (0.5 to 2.5 mm²) solid or stranded wire. The screwdriver spec is Pozidriv PZ2 with a 5–6 mm shaft diameter. Depth is 105 mm, width 55 mm, height 90 mm — fits a standard S2 starter slot. Temperature compensation is active from -40 °C to +60 °C, so the trip curve stays accurate even if the panel warms up near the motor. Substance prohibitance date is 10/15/2014, which aligns with the EU RoHS compliance timeline. The relay carries the usual Siemens documentation package — RoHS, REACH, and the IEC 60947-4-1 standard for electromechanical contactors and motor-starters. The 3RU2116-1FC1 is the smaller S0-frame sibling in the same SIRIUS family. The 3RU2136-1KD0 (Size S2) handles higher motor currents — up to 5.5 kW at 400 V versus the S0 frame's lower power range. Both share Trip Class 10, the same contactor-mounting philosophy, and the integrated auxiliary switch. The physical footprint is larger on the S2, so it will not drop into a panel wired for an S0 starter without re-drilling the mounting holes and re-terminating the power cables.","metaTitle":"Siemens 3RU2136-1KD0 SIRIUS Thermal Overload Relay, Class 10","metaDescription":"Siemens SIRIUS 3RU2136-1KD0 thermal overload relay, Size S2, Trip Class 10, rated 690 V, 5.5 kW at 400 V. Currently in production. Quoted to order against 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":"2.5 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 10","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":"5.5 kW","at 480 V rated value":"12.5 A","at 500 V rated value":"7.5 kW","at 600 V rated value":"12.5 A","at 690 V rated value":"7.5 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":"12.5 A","for AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","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","for 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":"12.5 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":"7.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"9 ... 12.5 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=804446&mlfb=3RU2136-1KD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-1KD0/alternatives.json"},"ai":{"faq":[{"question":"What does the 'Tripped' note on the 3RU2136-1KD0 mean?","answer":"It is a mechanical flag visible through a window on the relay front. When the bimetallic element deflects after an overload, the word 'Tripped' appears — a visual confirmation that the relay has operated and needs a manual reset."},{"question":"What is the depth of the 3RU2136-1KD0?","answer":"Depth is 105 mm. Width is 55 mm, height is 90 mm. These dimensions fit the standard SIRIUS S2 starter assembly footprint."},{"question":"Will 3RU2136-1KD0 drop into a panel wired for 3RU2116-1FC1?","answer":"No. The 3RU2136-1KD0 is Size S2, which is physically larger than the S0-frame 3RU2116-1FC1. The mounting holes and power terminal spacing differ, so the panel would need re-drilling and re-termination of the motor cables."},{"question":"What compliance documentation does Siemens provide for 3RU2136-1KD0?","answer":"The relay has a substance prohibitance date of 10/15/2014, consistent with EU RoHS compliance. Standard Siemens documentation includes RoHS, REACH, and the IEC 60947-4-1 standard for motor-starters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-1KD0","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/3RU2136-1KD0 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}}