{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-1AU60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-1AU60","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-1AU60","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1AU60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3RH1140-1AU60, 4 NO instantaneous contacts, 10 A AC-12 rated, screw and snap-on mounting, 45 mm width.","salesMarkdown":"It's the contact-multiplier block you snap onto a DIN rail or screw-mount inside a control panel, rated for AC-12 duty at 10 A, so it handles resistive loads on contactor coils, PLC outputs, or signal circuits without derating. The AC-12 operational current of 10 A is the headline number — that's the resistive-load rating at 24 V, where it can switch a full 10 A. At 230 V the rating drops to 6 A, at 400 V to 3 A, and at 690 V to 1 A. These are the thermal current limits for the contact set; if you're switching motor coils or solenoids (AC-15 duty), you'll need to derate further. The 4 NO contacts are all instantaneous, so there's no built-in timing — if the circuit needs a delayed or overlapping contact, this isn't the variant. Screw terminals accept 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² solid, plus AWG equivalents. That's enough for most control-circuit wiring; the double-wire capacity is handy for daisy-chaining commons. That's useful when you're packing a dense panel and need to orient the contactor for wire routing. Shock resistance is 10g at 5 ms and 5g at 10 ms — fine for most industrial cabinets, but check if the application has repetitive high-G impacts.","metaTitle":"Siemens 3RH1140-1AU60 SIRIUS Auxiliary Contactor, 4 NO, 10 A","metaDescription":"Siemens 3RH1140-1AU60 SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 10 A AC-12, screw terminals 0.5-4 mm², IP20 front, current production. Sourced to order.","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 60 Hz":"0.85 ... 1.1","1 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 500 V rated value":"2 A","at 60 Hz rated value":"277 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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=459408&mlfb=3RH1140-1AU60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1AU60/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RH1140-1AU60?","answer":"72 mm deep, 45 mm wide, 57.5 mm high — the S00 size fits standard DIN-rail spacing."},{"question":"What wire sizes does the 3RH1140-1AU60 accept?","answer":"Screw terminals accept 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² solid, plus AWG equivalents 2x 20-16, 2x 18-14, or 1x 12."},{"question":"Will 3RH1140-1AU60 drop into a panel specified for 3RH2440-1AP00 without rewiring?","answer":"Both are SIRIUS S00 auxiliary contactors with the same footprint and DIN-rail mounting, so the mechanical fit is identical. The difference is contact configuration: 3RH1140-1AU60 has 4 NO instantaneous contacts, while 3RH2440-1AP00 has a different contact arrangement. Check the contact scheme before swapping — the terminals may not map one-to-one."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-1AU60","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/3RH1140-1AU60 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}}