{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-2BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-2BB40","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-2BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1131-2BB40, 24 V DC coil, 10 A rated, 3 NO instantaneous contacts, screw and snap-on mounting, IP20 front, size S00.","salesMarkdown":"The 10 A rated value at 24 V covers most PLC output and relay interface loads; derate to 6 A at 230 V and 3 A at 400 V when switching higher line voltages. Three instantaneous NO contacts (no delayed or lagging switching) give you a clean set of mirror signals for feedback, interlock, or status indication back to the controller. The spring-cage terminals accept 0.25 to 2.5 mm² solid or stranded wire — strip length around 8 mm for a clean seat under the clamp.","metaTitle":"Siemens 3RH1131-2BB40 SIRIUS Auxiliary Contactor, 24 V DC, 1","metaDescription":"Siemens SIRIUS 3RH1131-2BB40 auxiliary contactor, 24 V DC coil, 10 A rated, 3 NO + 0 NC contacts, IP20, screw and snap-on mounting, active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Rated Value":"24 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","Full-Scale Value":"1.1","Shock Resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Product Brand Name":"SIRIUS","Contact Reliability":"one incorrect switching operation of 100 million switching operations (17 V, 1 mA)","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.27 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"2 A","at 690 V rated value":"1 A","Instantaneous Contact":"3","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"01.07.2006 00:00:00","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","reference code acc. to IEC 81346-2":"K","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","with low demand rate acc. to SN 31920":"40 %","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Touch Protection Against Electrical Shock":"finger-safe","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"3","Type Of Voltage Of The Control Supply Voltage":"DC","B10 value with high demand rate acc. to SN 31920":"1 000 000; With 0.3 x Ie","Identification Number And Letter For Switching Elements":"31 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"Cage Clamp terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 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=78576&mlfb=3RH1131-2BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2BB40/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RH1131-2BB40 rated for at 24 V DC?","answer":"The rated value at 24 V is 10 A, which covers typical control-circuit loads like PLC outputs, relay coils, and indicator lamps. At higher voltages the rating derates: 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V."},{"question":"What compliance documentation is available for the 3RH1131-2BB40?","answer":"RoHS compliance is confirmed with a substance prohibition date of 01 July 2006. The surge voltage resistance is rated at 6 kV, consistent with IEC 60947-1 coordination requirements for industrial control gear."},{"question":"Where can I buy the 3RH1131-2BB40 and how is it quoted?","answer":"This part is sourced to order through independent distribution. Submit an RFQ with your quantity and delivery requirements; 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/3RH1131-2BB40","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/3RH1131-2BB40 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}}