{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-1BE40-0AA6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-1BE40-0AA6","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-1BE40-0AA6","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1BE40-0AA6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3RH1140-1BE40-0AA6, 4 NO instantaneous contacts, 10 A AC-12 rated, 24 VDC coil, screw and snap-on mounting.","salesMarkdown":"It carries 4 normally-open instantaneous contacts rated for 10 A in AC-12 duty, which covers resistive and solid-state loads typical in PLC and relay logic interfaces. The 45 mm width and 72 mm depth mean it fits in a standard 45 mm-wide slot on the rail, leaving 0 mm clearance needed at the sides for airflow or wiring access — you can butt it against adjacent devices. ## Environmental and electrical ratings The IP20 front protection keeps fingers out but doesn't seal against water — keep it inside a cabinet. Shock resistance is 10g for 5 ms and 5g for 10 ms, so it handles moderate vibration on a machine frame or conveyor line. ## Contact ratings across voltages The contacts are rated for switching at multiple control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. The 110 V and 220 V ratings are 1 A and 0.27 A respectively. These are the maximum continuous currents the contacts can make and break at those voltages — useful when the same contactor block is used across different control supply standards in a multi-voltage panel.","metaTitle":"Siemens SIRIUS 3RH1140-1BE40-0AA6 Auxiliary Contactor, 4 NO,","metaDescription":"Siemens SIRIUS 3RH1140-1BE40-0AA6 auxiliary contactor, size S00, 4 NO contacts, 10 A AC-12 rated, 24 VDC coil. Active production. Screw/snap-on mount. IP20 front.","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","Maximum":"2 000 m","At The Side":"0 mm","Rated Value":"60 V","On The Front":"IP20","Initial Value":"0.8","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","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","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","Closing power of magnet coil at DC":"3.2 W","Holding power of magnet coil at DC":"3.2 W","Operating current at AC-12 maximum":"10 A","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 61346-2":"K","Reference code acc. to DIN EN 81346-2":"K","with low demand rate acc. to SN 31920":"40 %","With Degree Of Pollution 3 Rated Value":"690 V","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","Of Auxiliary Contacts Instantaneous Contact":"0","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","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$22.57","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=354483&mlfb=3RH1140-1BE40-0AA6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1BE40-0AA6/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this auxiliary contactor?","answer":"It has 4 normally-open instantaneous contacts rated 10 A at AC-12 duty. The 24 VDC coil draws 3.2 W. Mechanical life is 30 million cycles. Width is 45 mm, depth 72 mm, height 57.5 mm."},{"question":"What wire sizes does the terminal accept?","answer":"Solid conductors from 0.5 mm² up to 4 mm² are accepted, with dual termination points for each contact allowing daisy-chaining of control wiring."},{"question":"What is the operating temperature range?","answer":"Operation is rated from -25 °C to +60 °C. Storage and transport range is -55 °C to +80 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-1BE40-0AA6","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/3RH1140-1BE40-0AA6 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}}