{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-2AK60-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-2AK60-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-2AK60-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-2AK60-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 normally open instantaneous contacts, screw and snap-on mounting, IP20 front, 73 mm depth.","salesMarkdown":"The Siemens SIRIUS 3RH1140-2AK60-1AA0 is a size S00 auxiliary contactor delivering 4 normally open instantaneous contacts with no delayed or lagging switching. Rated for 10 A at 24 V and 6 A at 230 V, it handles the signal-level and pilot-duty switching typical in control panels — interlocking, status feedback, or extending a PLC's digital output capacity. The 6 kV surge voltage rating means it withstands the transients common in industrial environments without failing short. The 45 mm width and 73 mm depth fit the SIRIUS S00 footprint, so it occupies the same slot as other S00 contactors and auxiliary blocks. Standing on a horizontal mounting surface is the specified orientation; the IP20 front keeps fingers and tools out of the live terminals inside the enclosure. Four instantaneous NO contacts with no make-before-break or delayed switching. The contact reliability spec — one incorrect switching operation per 100 million operations at 17 V, 1 mA — means it handles low-energy signals from PLC outputs or sensors without the oxidation failures that plague general-purpose relays at dry-circuit levels. Rated currents drop with voltage: 10 A at 24 V, 1 A at 110 V, 0.27 A at 220 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. The 50 Hz and 60 Hz operating ranges cover both 50 Hz and 60 Hz supply systems. Solid conductors from 0.25 to 2.5 mm² are accepted per terminal. The product extension for auxiliary switches is supported, so additional contact blocks can be stacked on the same S00 frame if the four NO contacts aren't enough. Typical mechanical life for this contactor size is 30 million operations.","metaTitle":"Siemens 3RH1140-2AK60-1AA0 SIRIUS Auxiliary Contactor, Size","metaDescription":"Siemens SIRIUS 3RH1140-2AK60-1AA0 auxiliary contactor, size S00, 4 NO contacts. Screw/snap-on mount, IP20 front, rated 10 A at 24 V. Current lifecycle. Quoted 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 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","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","Shock Resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting Position":"standing, on horizontal 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 50 Hz rated value":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"120 V","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","Surge Voltage Resistance Rated Value":"6 kV","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (24 ... 14)","reference code according to IEC 81346-2":"K","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","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","apparent holding power of magnet coil at AC":"4.6 VA","apparent pick-up power of magnet coil at AC":"27 VA","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":"AC","Inductive Power Factor With Closing Power Of The Coil":"0.8","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","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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=202759&mlfb=3RH1140-2AK60-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-2AK60-1AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1140-2AK60-1AA0 and get a price?","answer":"This part is available to order through our channel. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What are the key ratings for this auxiliary contactor?","answer":"Four NO contacts rated 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V. Size S00, screw/snap-on mount, IP20 front, 6 kV surge voltage withstand."},{"question":"Will 3RH1140-2AK60-1AA0 drop into a panel specified for 3RH2131-2AK60?","answer":"Both are SIRIUS S00 auxiliary contactors with the same 45 mm width and screw/snap-on mounting, so the physical footprint and DIN rail clip are identical. The contact configuration differs — this one has 4 NO, while the other may have a different NO/NC mix — so verify the circuit's contact count and polarity before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-2AK60-1AA0","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/3RH1140-2AK60-1AA0 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}}