{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-1BM40-0AA6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-1BM40-0AA6","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-1BM40-0AA6","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1BM40-0AA6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 10 A AC-12 rated operational current, 220 V DC coil, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"It carries a 10 A rated operational current in AC-12 duty at 400 V, which covers most 24 V to 230 V control loads you'd hang on a PLC output or a larger contactor's auxiliary. The coil is rated for 220 V DC, drawing 3.2 W both on pickup and hold — no extra inrush to size your power supply around. The contact block is field-expandable — the product extension auxiliary switch is supported, so you can add more contact sets later without swapping the base unit. The 6 kV rated surge voltage resistance means it's comfortable in industrial environments with moderate transient activity, and pollution degree 3 rating confirms it's suited for conductive-pollution conditions typical in control panels.","metaTitle":"Siemens 3RH1140-1BM40-0AA6 SIRIUS Auxiliary Contactor, 10 A","metaDescription":"Siemens SIRIUS 3RH1140-1BM40-0AA6 auxiliary contactor, size S00. 4 NO contacts, 10 A AC-12 rating, 220 V DC coil. Screw and snap-on mounting. IP20 front. Current production. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","Height":"57.5 mm","Rated Value":"220 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":"4","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"07/01/2006","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","Surge Voltage Resistance Rated Value":"6 kV","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","Of Auxiliary Contacts Instantaneous Contact":"0","with high demand rate according to SN 31920":"75 %","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"4","Type Of Voltage Of The Control Supply Voltage":"DC","Identification Number And Letter For Switching Elements":"40 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":"screw-type 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=319857&mlfb=3RH1140-1BM40-0AA6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1BM40-0AA6/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RH1140-1BM40-0AA6?","answer":"The part carries a substance prohibitance date of July 1, 2006, aligning with RoHS compliance. Standard Siemens documentation includes the declaration of conformity and the product datasheet. For specific certificates (UL, CSA, IEC), check the Siemens Industry Online Support portal for this order code."},{"question":"Where can I buy 3RH1140-1BM40-0AA6?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. 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/3RH1140-1BM40-0AA6","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/3RH1140-1BM40-0AA6 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}}