{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1136-4BD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1136-4BD0","canonicalUrl":"https://aoctrl.com/siemens/3RU1136-4BD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4BD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, Size S2, 3-pole, CLASS 10, screw-type main terminals, Cage Clamp aux terminals, IP20 front, ATEX certified.","salesMarkdown":"The 3-pole main circuit uses screw-type terminals; the auxiliary and control circuit uses Cage Clamp terminals for tool-less wiring. Trip Class 10 governs the thermal curve — this relay opens within 10 seconds on a locked-rotor condition, fast enough to protect most IEC frame motors without nuisance tripping on normal starting inrush. Shock resistance of 8g for 10 ms covers normal contactor switching vibration but not repeated hammering. The mounting position allows ±135° rotation and ±45° tilt from vertical, so it adapts to tight enclosures as long as the surface is vertical. Auxiliary contact ratings cover the common control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V — enough to drive a PLC input or a small contactor coil. The 6 kV surge voltage resistance (rated value) ensures the auxiliary circuit holds up against switching transients from the main contactor. Power dissipation is 3.5 W per pole, so in a multi-relay cabinet, account for roughly 10.5 W total heat to avoid derating adjacent components. Wire ranges: solid conductors accept 2x (0.5 … 2.5 mm²); stranded accepts 2x (0.75 … 25 mm²) or single 0.75 … 35 mm². This covers most motor-circuit power wiring up to about 35 mm². The auxiliary circuit uses Cage Clamp terminals accepting 2x (0.5 … 1.5 mm²) finely stranded with ferrules, or 2x (20 … 14) AWG. Relative humidity up to 100% is allowed during operation — no derating for condensation as long as the IP20 front is respected. The relay carries ATEX protection type DMT 98 ATEX G 001, certifying it for use in potentially explosive atmospheres (Group II, Category 2G). The substance prohibition date of 07/01/2006 aligns with RoHS compliance. These markings on the nameplate match what a quality doc control check expects for panel certification packs.","metaTitle":"Siemens 3RU1136-4BD0 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU1136-4BD0 SIRIUS thermal overload relay, Size S2, CLASS 10 trip, 3-pole, IP20 front, ATEX certified, screw terminals for main circuit. Sourced 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 ... 2.5 mm²)","Width":"55 mm","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","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":"Cage Clamp terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"6 kV","for 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":"10.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"14 ... 20 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=137064&mlfb=3RU1136-4BD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4BD0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RU1136-4BD0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the 3RU1136-4BD0's depth?","answer":"The depth is 118 mm. Combined with a width of 55 mm and height of 105 mm, it fits the standard SIRIUS S2 footprint for contactor-mounting."},{"question":"What compliance documentation does the 3RU1136-4BD0 carry?","answer":"It carries ATEX certification DMT 98 ATEX G 001 for explosive atmospheres, and the substance prohibition date of 07/01/2006 indicates RoHS compliance. The reference code per IEC 81346-2 is F."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1136-4BD0","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/3RU1136-4BD0 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}}