{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-1AR60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-1AR60","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-1AR60","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1AR60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 4 NO contacts, Size S00, 45 mm width, screw and snap-on mounting, IP20 front, rated 10 A at 24 V.","salesMarkdown":"It's built for control-circuit logic — extending a contactor or relay stack with extra NO poles for PLC inputs, pilot lights, or interlocking. ## Ratings that matter for the fit Rated operational current is 10 A at 24 V, dropping to 6 A at 230 V and 3 A at 400 V — so at line voltage the contacts handle a 3 A resistive load, not the full 10 A you see at 24 V. The coil circuit is rated for 0.8–1.1 A at 50 Hz and 0.85–1.1 A at 60 Hz, which governs the control transformer sizing. Pollution degree 3 means it's suited for the conductive-dust and humidity you get in a typical control cabinet, not a clean room. That helps when you're packing a dense panel and the DIN rail isn't perfectly level. Conductor cross-sections accepted are 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² solid — covers most control wiring with room for daisy-chaining. Dimensions are 45 mm wide, 57.5 mm high, 72 mm deep, so it fits the standard S00 footprint.","metaTitle":"Siemens 3RH1140-1AR60 SIRIUS Auxiliary Contactor, 4 NO, Size","metaDescription":"Siemens SIRIUS 3RH1140-1AR60 auxiliary contactor, 4 NO contacts, Size S00, 45 mm wide, IP20 front. Screw and snap-on mounting. Rated 10 A at 24 V. Current lifecycle. Sourced to ord","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","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":"+/-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 50 Hz rated value":"400 V","at 500 V rated value":"2 A","at 60 Hz rated value":"400 ... 440 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 (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","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":"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":"$26.75","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=263395&mlfb=3RH1140-1AR60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1AR60/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3RH1140-1AR60 and how is it quoted?","answer":"It is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ — no stock or price figures are published here."},{"question":"What compliance documentation does Siemens provide for 3RH1140-1AR60?","answer":"The part carries a RoHS compliance date of July 1, 2006, meeting EU substance restrictions. It also meets pollution degree 3 per IEC 60947-1, and surge voltage resistance of 6 kV per IEC 60947."},{"question":"Will 3RH1140-1AR60 drop into a panel specified around 3RH2440-1AP00 without rewiring?","answer":"No — the 3RH2440-1AP00 is a different contactor configuration. The 3RH1140-1AR60 is a 4 NO auxiliary contactor, while the 3RH2440-1AP00 has a different contact arrangement. Check the specific contact count and terminal layout of your existing panel before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-1AR60","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/3RH1140-1AR60 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}}