{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-2BM40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-2BM40","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-2BM40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2BM40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3 NO + 1 NC, 220 V DC coil, Cage Clamp terminals, 10 A AC-12 rated operational current, IP20 front protection.","salesMarkdown":"It carries 3 normally open and 1 normally closed instantaneous contacts, with a rated operational current of 10 A in AC-12 duty (resistive loads) and a 220 V DC coil. The 10 A AC-12 rating means it can handle resistive control loads up to that current, typical for pilot devices, PLC outputs, and contactor coils. Terminals are Cage Clamp (spring-cage) for the auxiliary and control circuit, accepting 2x (0.25 to 2.5 mm²) solid or 2x (0.25 to 1.5 mm²) finely stranded with ferrule. This speeds wiring and reduces torque-check steps during panel build. Shock resistance is 10g / 5 ms and 5g / 10 ms, suitable for machine-mounted applications with moderate vibration. Degree of pollution 3 per IEC 60947-1, meaning it tolerates conductive pollution in industrial atmospheres. Surge voltage resistance rated at 6 kV.","metaTitle":"Siemens 3RH1131-2BM40 SIRIUS Auxiliary Contactor, 10 A AC-12","metaDescription":"Siemens SIRIUS 3RH1131-2BM40 auxiliary contactor, 10 A AC-12, 220 V DC coil, 3 NO + 1 NC, Cage Clamp terminals, IP20, active production. Sourced to order.","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","At The Side":"0 mm","Rated Value":"220 V","On The Front":"IP20","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary Switch":"Yes","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","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","Instantaneous Contact":"3","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","For Auxiliary And Control Circuit":"Cage Clamp terminals","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","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)","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","with degree of pollution 3 at AC rated value":"690 V","Type Of Voltage Of The Control Supply Voltage":"DC","operational current at AC-15 at 230 V rated value":"6 A","operational current at AC-15 at 400 V rated value":"3 A","operational current at AC-15 at 500 V rated value":"2 A","operational current at AC-15 at 690 V rated value":"1 A","Identification Number And Letter For Switching Elements":"31 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","type of connectable conductor cross-sections at AWG cables for auxiliary contacts":"2x (24 ... 14)","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=442571&mlfb=3RH1131-2BM40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2BM40/alternatives.json"},"ai":{"faq":[{"question":"What are the key current ratings for this auxiliary contactor?","answer":"The 3RH1131-2BM40 is rated 10 A at AC-12 (resistive loads) and 10 A at 24 V DC. At 110 V DC the rating is 1 A, and at 220 V DC it is 0.27 A."},{"question":"Where can I buy the 3RH1131-2BM40?","answer":"The 3RH1131-2BM40 is sourced to order against an RFQ through our independent distribution network. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth of the 3RH1131-2BM40?","answer":"The depth is 73 mm, with a width of 45 mm and height of 60 mm."},{"question":"Does the 3RH1131-2BM40 use Cage Clamp terminals?","answer":"Yes, the auxiliary and control circuit terminals are Cage Clamp (spring-cage) type, accepting 2x (0.25 to 2.5 mm²) solid or 2x (0.25 to 1.5 mm²) finely stranded with ferrule."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-2BM40","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/3RH1131-2BM40 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}}