{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1136-4FB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1136-4FB0","canonicalUrl":"https://aoctrl.com/siemens/3RU1136-4FB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4FB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS Size S2 thermal overload relay, 3RU1136-4FB0, 3-pole, CLASS 10, screw-type terminals, ATEX certified, IP20 front.","salesMarkdown":"It is designed to protect motors against overload by monitoring current and tripping within CLASS 10 time limits. The relay carries ATEX certification (DMT 98 ATEX G 001), so it is approved for use in potentially explosive atmospheres per the ATEX directive — a critical check for oil and gas, chemical, or grain-handling installations where a standard thermal overload would not be permitted. The front face is IP20 rated, meaning finger-safe against accidental contact, but the relay itself is not sealed against moisture or dust ingress — it is intended for installation inside an enclosure rated to the environment. Mounts directly onto a contactor via the fastening method specified as contactor mounting — no separate DIN-rail clip required. The mounting position allows a vertical mounting surface with ±135° rotation, or ±45° tilt to the front and back, giving flexibility in tight panel layouts. This means it can be stacked directly against adjacent devices on three sides, saving DIN-rail space in densely packed panels. Physical dimensions: 55 mm wide, 105 mm tall, 118 mm deep. The 118 mm depth is the full projection from the mounting surface — verify cabinet depth clearance before specifying, especially in shallow enclosures. Main current circuit terminals accept stranded conductors from 0.75 mm² up to 35 mm², or two conductors per terminal (0.75 to 25 mm²). Auxiliary and control circuit terminals accept solid conductors 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²), and finely stranded with core-end processing the same range. AWG equivalents for auxiliary contacts: 2× (20 to 16) and 2× (18 to 14). Power dissipation per pole is 5.2 W at rated current — total 15.6 W for the three poles. This matters for thermal management inside sealed enclosures; factor it into the cabinet's heat budget. Relative humidity during operation can reach 100 %, so the relay tolerates condensing environments inside the enclosure. Shock resistance rated at 8g for 10 ms. Surge voltage resistance rated at 6 kV. Substance prohibitance date per RoHS is July 1, 2006 — the part is RoHS-compliant. Auxiliary contact ratings: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, 0.22 A at 110 V, 0.22 A at 125 V, 0.11 A at 220 V. These are the switching capacities for the integrated auxiliary contacts — match your control voltage to the appropriate column.","metaTitle":"Siemens 3RU1136-4FB0 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU1136-4FB0 SIRIUS Size S2 thermal overload relay, CLASS 10, 3-pole, screw terminals, ATEX certified, IP20 front. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"118 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"55 mm","title":"3RU1136-4FB0","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","description":"Overload relay 28...40 A For motor protection Size S2, Class 10 Contactor mounting Main circuit: Screw terminal Auxiliary circuit: Screw terminal Manual-Automatic-Reset!!! Phased-out product!!! Successor is SIRIUS 3RU2 Preferred successor type is >>3RU2136-4FB0<<","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","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Touch Protection Against Electrical Shock":"finger-safe","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":"28 ... 40 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$95.25","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4e0ed9ab6a9221e9da88001b33ccf2a3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=436393&mlfb=3RU1136-4FB0"},"ai":{"faq":[{"question":"Does the 3RU1136-4FB0 have ATEX certification?","answer":"Yes, it carries ATEX certification DMT 98 ATEX G 001, making it approved for use in potentially explosive atmospheres."},{"question":"What is the depth of the 3RU1136-4FB0?","answer":"The depth is 118 mm from the mounting surface. Verify cabinet depth clearance before installation."},{"question":"What wire sizes does the 3RU1136-4FB0 accept on the main terminals?","answer":"The main current circuit screw terminals accept stranded conductors from 0.75 mm² to 35 mm², or two conductors from 0.75 mm² to 25 mm²."},{"question":"What compliance documentation is available for the 3RU1136-4FB0?","answer":"The part is RoHS-compliant (substance prohibitance date July 1, 2006) and carries ATEX certification. It is part of the Siemens SIRIUS family with standard IEC compliance documentation available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1136-4FB0","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/3RU1136-4FB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}