{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1136-4DB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1136-4DB0","canonicalUrl":"https://aoctrl.com/siemens/3RU1136-4DB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4DB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU1136-4DB0 thermal overload relay, Size S2, CLASS 10, 3-pole, screw terminals, IP20 front protection, contactor mounting.","salesMarkdown":"This one is in the S2 frame size, so it's built for the mid-range motor currents — not the smallest, not the largest. It's a 3-pole relay (covers three-phase motors) with screw-type terminals on both the main circuit and the auxiliary/control circuit. This relay mounts directly to the contactor — no DIN rail needed, no extra bracket. The fastening method is \"contactor mounting\", so it clips onto the front of the corresponding SIRIUS contactor (typically the 3RT2 or 3RT5 series in the S2 frame). That saves panel space and keeps the wiring tidy. The dimensions are 55 mm wide, 105 mm tall, and 118 mm deep. It's not a small part — that 118 mm depth means you need clearance behind the contactor for the relay body. That gives you options in a tight enclosure. Clearance requirements: 0 mm upwards, forwards, backwards, and downwards — so it can butt up against other components in those directions. But you need 6 mm at the side for airflow and arc clearance. Main circuit terminals accept solid wire: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). Stranded wire: 2x (0.75 to 25 mm²) or single 0.75 to 35 mm². That's a wide range — covers everything from control wiring up to fairly heavy motor leads. Auxiliary contact terminals take 2x (20 to 16 AWG) or 2x (18 to 14 AWG). All screw-type, so you'll need a screwdriver, not a ferrule crimper. Relative humidity up to 100% during operation — it can handle condensation inside the panel. Shock resistance is 8g for 10 ms, which is typical for industrial control panels. It carries ATEX protection type DMT 98 ATEX G 001, so it's approved for use in potentially explosive atmospheres (gas, not dust). Surge voltage resistance rated at 6 kV.","metaTitle":"Siemens 3RU1136-4DB0 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU1136-4DB0 SIRIUS thermal overload relay, CLASS 10, Size S2, 3-pole, IP20 front, contactor-mount. Current production. Sourced to order. Request quote.","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":"3RU1136-4DB0","Height":"105 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Per Pole":"3.5 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 18...25 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 >>3RU2136-4DB0<<","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":"10.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"18 ... 25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9ea04a9afc674dcc96f5b5506252cdfa.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=103027&mlfb=3RU1136-4DB0"},"ai":{"faq":[{"question":"Where can I buy the 3RU1136-4DB0 and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ with your quantity and target price; availability and current pricing are confirmed at quote time. We don't list a shelf price because the market moves — but we can get you a firm number fast."},{"question":"What is the depth of the 3RU1136-4DB0?","answer":"The depth is 118 mm. That's the body depth behind the contactor face — make sure your enclosure has that clearance behind the mounting surface."},{"question":"What compliance documentation does the 3RU1136-4DB0 have?","answer":"It carries ATEX approval (DMT 98 ATEX G 001) for gas atmospheres, RoHS compliance (substance prohibitance date July 1, 2006), and surge voltage resistance rated at 6 kV. Reference code per IEC 81346-2 is 'F'."},{"question":"Does the 3RU1136-4DB0 drop into a panel wired for a 3RT5036-1AB00 contactor?","answer":"Yes — this relay is designed for contactor mounting on the SIRIUS S2 frame, which is the same frame as the 3RT5036 series. It clips directly onto the contactor front without rewiring the main circuit. Verify the auxiliary contact wiring matches your control scheme, but the mechanical fit is identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1136-4DB0","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/3RU1136-4DB0 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}}