{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2271-1BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2271-1BB40","canonicalUrl":"https://aoctrl.com/siemens/3RH2271-1BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2271-1BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2271-1BB40 auxiliary contactor, S00 frame, 24 VDC coil, 4 NO + 4 NC contacts, 10 A rated, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"The 3RH2271-1BB40: Depth is 117 mm, which includes clearance for the coil terminals and wiring. Side clearance of 6 mm and vertical clearances of 10 mm (up, down, forward) keep heat dissipation and arc quenching zones clear. ## Coil and contact ratings Rated control supply voltage is 24 VDC, with a pick-up threshold of 0.8 × rated (19.2 V) and a drop-out threshold of 0.55 × rated (13.2 V). Coil holding power is 4 W DC, and closing power is also 4 W DC — the magnet circuit is fully saturated at pick-up, so inrush is minimal. Full manufacturer traceability and warranty apply.","metaTitle":"Siemens 3RH2271-1BB40 SIRIUS Auxiliary Contactor, 24 VDC","metaDescription":"Siemens 3RH2271-1BB40 SIRIUS auxiliary contactor, 24 VDC coil, S00 frame, 4 NO + 4 NC contacts, 10 A rated. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"117 mm","Width":"45 mm","at AC":"10 000 1/h","at DC":"7 ... 13 ms","Height":"57.5 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","Full-Scale Value":"1.1","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","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 440 V rated value":"0.5 A","at 500 V rated value":"2 A","at 600 V rated value":"0.26 A","at 690 V rated value":"1 A","Instantaneous Contact":"7","Relative Humidity Minimum":"10 %","Substance Prohibitance (Date)":"10/01/2009","Product Extension Auxiliary Switch":"No","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 W","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","operating frequency at DC-12 maximum":"1 000 1/h","operating frequency at DC-13 maximum":"1 000 1/h","operational current at AC-12 maximum":"10 A","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)","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"7","Type Of Voltage Of The Control Supply Voltage":"DC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Identification Number And Letter For Switching Elements":"71 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V":"C characteristic: 6 A; 0.4 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e2473ba2d9ec1728d4d7e379ce8c91c4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=115124&mlfb=3RH2271-1BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2271-1BB40/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RH2271-1BB40?","answer":"Pricing and availability are confirmed at RFQ against your BOM quantity. The part is sourced through authorized distribution with full traceability and warranty."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2271-1BB40","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/3RH2271-1BB40 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}}