{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4GD1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4GD1","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4GD1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4GD1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU2136-4GD1, CLASS 10, 690 V rated, 22 kW at 400 V, S2 size, screw terminals.","salesMarkdown":"Rated for 690 V and delivering 22 kW at 400 V (45 A at 480 V, 30 kW at 500 V, 37 kW at 690 V), this relay covers a solid mid-range motor protection slot. The thermal bimetallic release is temperature-compensated from -40 to +60 °C, so it doesn't nuisance-trip when the panel warms up in summer. ## Mounting and wiring reality Stand-alone installation — no DIN-rail clip on this S2 frame. You bolt it directly to the mounting plate or panel using the M6 main contact screws. Mounting position is any, which helps in tight retrofit cabinets. Main circuit wiring lands on screw-type terminals accepting 2× (0.5 to 2.5 mm²) solid or stranded. The integrated auxiliary switch handles the signal side — rated 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.75 A at 690 V. That auxiliary contact is what tells the PLC or contactor coil that the relay has tripped. Pozidriv PZ 2 screwdriver tip, shaft diameter 5 to 6 mm — standard electrician's kit, no special tooling needed. The SIRIUS platform is Siemens' mainstream motor protection line, so spares and replacements are stable for the foreseeable future. Substance prohibitance date of October 15, 2014, means the part meets RoHS and REACH requirements from that compliance cutover. No additional documentation beyond the standard declaration is expected for this generation. The CLASS 10 trip class is the key selection parameter: it matches the thermal capacity of standard squirrel-cage motors. If your motor has a higher inertia load (centrifuge, crusher) you'd need CLASS 20 or 30 — this relay isn't that. Per-pole power dissipation of 5.2 W adds up in a multi-motor panel. The note \"for message 'Tripped'\" on the product line refers to the auxiliary contact position that signals the tripped state — it's the normally-open contact that closes when the bimetals have bent far enough. That's what you wire back to the PLC input or the contactor's undervoltage release.","metaTitle":"Siemens 3RU2136-4GD1 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU2136-4GD1 SIRIUS thermal overload relay, CLASS 10 trip, 690 V rated, 22 kW at 400 V. Current production. Sourced 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":"117 mm","Width":"55 mm","Height":"105 mm","at 24 V":"2 A","at 60 V":"0.3 A","Per Pole":"5.2 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":"stand-alone installation","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":"22 kW","at 480 V rated value":"45 A","at 500 V rated value":"30 kW","at 600 V rated value":"45 A","at 690 V rated value":"37 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":"45 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":"45 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":"15.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"36 ... 45 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=504667&mlfb=3RU2136-4GD1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4GD1/alternatives.json"},"ai":{"faq":[{"question":"When sourcing 3RU2136-4GD1, what's the closest functional second-source — 3RU2116-1FC1?","answer":"The 3RU2116-1FC1 is a smaller SIRIUS relay (size S0) with a lower current range. It will not drop into the same panel footprint without rewiring — the S2 frame has different mounting centers and terminal spacing. Stick with the 3RU2136-4GD1 for the S2 slot."},{"question":"What is 3RU2136-4GD1's listed note (for message \"Tripped\") on this component line?","answer":"The note \"for message 'Tripped'\" indicates the auxiliary contact position that signals the relay has tripped. It's the normally-open contact that closes when the bimetals have operated."},{"question":"What is 3RU2136-4GD1's listed depth (117 mm) on this component line?","answer":"The depth is 117 mm, width 55 mm, height 105 mm. That's the overall envelope including the screw terminals."},{"question":"Will 3RU2136-4GD1 drop into a panel that was specified around 3RU2116-1FC1 without rewiring?","answer":"No. The 3RU2136-4GD1 is a size S2 frame; the 3RU2116-1FC1 is size S0. Different mounting centers, different terminal spacing. You'd need to re-drill the panel and re-terminate the conductors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4GD1","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/3RU2136-4GD1 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}}