{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-1BE40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-1BE40","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-1BE40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1BE40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1140-1BE40, size S00, 4 NO contacts, 24 VDC coil, 10 A AC-12 rated, screw and snap-on mounting.","salesMarkdown":"It carries 4 normally-open instantaneous contacts rated 10 A at 24 V and 10 A in AC-12 duty, which covers resistive and solid-state loads typical of PLC inputs, indicator lamps, and small relays. The coil pulls 3.2 W DC both inrush and hold, so the power supply doesn't need to differentiate pick vs. seal current. Size S00 keeps the footprint at 45 mm wide, 57.5 mm tall, 72 mm deep — it clips onto a DIN rail or screws directly to a backplate. The 10 A AC-12 rating is the headline figure for pilot-duty switching — it's the current the contacts can make and break for resistive loads like contactor coils and signal lamps. For inductive DC loads, the voltage-specific ratings tell the real story: 10 A at 24 V, 1 A at 110 V, 0.27 A at 220 V — the DC arc extinction limits the current as voltage climbs. At 230 V AC the contacts handle 6 A, at 400 V AC 3 A, at 690 V AC 1 A. That span covers most control-voltage levels in European and North American panels. The screw terminals accept 2x 0.5…1.5 mm², 2x 0.75…2.5 mm², or 2x 4 mm² solid conductors — enough for daisy-chaining the common rail through multiple auxiliary blocks. Shock tested to 10g / 5 ms and 5g / 10 ms — fine for machine-mounted cabinets near presses or conveyors.","metaTitle":"Siemens 3RH1140-1BE40 SIRIUS Auxiliary Contactor, 4 NO, S00","metaDescription":"Siemens 3RH1140-1BE40 SIRIUS auxiliary contactor, 4 NO contacts, size S00, 24 VDC coil, 10 A AC-12. Current production. Quoted 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","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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=440542&mlfb=3RH1140-1BE40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-1BE40/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-1BE40","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 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}}