{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1136-4HD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1136-4HD0","canonicalUrl":"https://aoctrl.com/siemens/3RU1136-4HD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4HD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, thermal overload relay, 3RU1136-4HD0, size S2, Class 10, IP20 front, ATEX certified.","salesMarkdown":"The Siemens 3RU1136-4HD0 is a SIRIUS thermal overload relay in size S2, designed to protect motors against overload and phase failure by monitoring the motor current and tripping a connected contactor when the thermal limit is exceeded. It mounts directly to the contactor via the fastening method (contactor mounting), saving panel space and eliminating separate wiring between the relay and the contactor coil. The front face carries IP20 protection, meaning it is finger-safe and suitable for installation inside an enclosure where the front is accessible during commissioning or maintenance. Trip Class 10 means the relay will trip within 10 seconds at 7.2× the current setting — this is the standard for standard-duty motor starting where the start-up time is under 10 seconds. The surge voltage resistance rated at 6 kV (impulse withstand) ensures the relay can handle transient overvoltages common in industrial networks without nuisance tripping or damage. The auxiliary contacts are rated for 1 A at 24 V, 3 A at 120 V, and 2 A at 230 V — these values govern the control-circuit load the relay can switch directly; for higher loads an interface relay is needed. Ambient operating temperature range of -20 to +70 °C and storage range of -55 to +80 °C cover most industrial environments, including unheated warehouses and outdoor cabinets. ## Compliance and approvals The part carries ATEX certification (DMT 98 ATEX G 001) for use in potentially explosive atmospheres — this is a documented declaration of conformity for the EU market. RoHS compliance is indicated by the substance prohibitance date of 07/01/2006, confirming the relay meets the RoHS directive for hazardous substance restrictions. ## Mounting and wiring notes Mounting position allows rotation of +/-135° on a vertical surface and tilting of +/-45° to front and back, giving flexibility in tight enclosures. Main circuit terminals accept solid conductors 2x (0.5... 2.5 mm²) and stranded up to 2x (0.75... 25 mm²) or single 0.75... 35 mm²; auxiliary/control circuit uses cage clamp terminals for 2x (0.5... 1.5 mm²) fine-stranded with ferrules.","metaTitle":"Siemens 3RU1136-4HD0 SIRIUS Thermal Overload Relay, Class 10","metaDescription":"Siemens 3RU1136-4HD0 SIRIUS thermal overload relay, size S2, Class 10 trip, IP20 front, ATEX certified. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"118 mm","Solid":"2x (0.5 ... 2.5 mm²)","Width":"55 mm","Height":"105 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Per Pole":"5.2 W","Stranded":"2x (0.75 ... 25 mm²), 0.75 ... 35 mm²","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","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 10","At The Side":"6 mm","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","Shock Resistance":"8g / 10 ms","Mounting Position":"with vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back","Product Brand Name":"SIRIUS","Type Of Protection":"DMT 98 ATEX G 001","Product Designation":"thermal overload relay","Size Of Overload Relay":"S2","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"07/01/2006","at AWG cables for main contacts":"2x (18 ... 3), 1x (18 ... 1)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"Cage Clamp terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","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","Touch Protection Against Electrical Shock":"finger-safe","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Size Of Contactor Can Be Combined Company-Specific":"S2","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/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":"40 ... 50 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=378681&mlfb=3RU1136-4HD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4HD0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 3RU1136-4HD0 carry?","answer":"The relay is ATEX certified (DMT 98 ATEX G 001) and RoHS compliant (substance prohibitance date 07/01/2006), providing documented conformity for EU regulatory requirements."},{"question":"What is the trip class of the 3RU1136-4HD0?","answer":"It is Trip Class 10, meaning it will trip within 10 seconds at 7.2× the current setting, suitable for standard motor starting applications."},{"question":"Where can I buy the 3RU1136-4HD0?","answer":"The 3RU1136-4HD0 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1136-4HD0","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/3RU1136-4HD0 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}}