{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-2BW40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-2BW40","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-2BW40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2BW40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3 NO + 0 NC, 10 A at 24 V DC, screw and snap-on mounting, IP20.","salesMarkdown":"## Auxiliary contactor for SIRIUS S00 contactor systems It provides 3 normally open (NO) instantaneous contacts and 0 normally closed (NC) contacts, switching loads up to 10 A at 24 V DC or 10 A in AC-12 duty. ## Panel integration and mounting flexibility At 45 mm wide and 60 mm tall, it occupies a standard S00 footprint; depth is 73 mm, so plan for that behind the DIN rail. Rated operational current varies by voltage and duty: 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 AC-12 maximum is 10 A, covering resistive and small inductive loads typical in control circuits. Mechanical endurance is listed at 30,000,000 cycles typical — a solid figure for high-cycle applications like conveyor interlocks or packaging machines.","metaTitle":"Siemens 3RH1131-2BW40 SIRIUS Auxiliary Contactor, 3 NO, 10 A","metaDescription":"Siemens 3RH1131-2BW40 SIRIUS auxiliary contactor, S00 size, 3 NO contacts, 10 A rated at 24 V DC. Screw and snap-on mounting, IP20. Current lifecycle stage. Sourced to order agains","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","Maximum":"2 000 m","At The Side":"0 mm","Rated Value":"48 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":"3","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 (0.25 ... 1.5 mm²)","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"Cage Clamp terminals","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","Number of NC contacts for auxiliary contacts":"1","Number of NO contacts for auxiliary contacts":"3","Type of voltage of the control supply voltage":"DC","Identification number and letter for switching elements":"31 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=197526&mlfb=3RH1131-2BW40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2BW40/alternatives.json"},"ai":{"faq":[{"question":"What is 3RH1131-2BW40's listed depth?","answer":"The depth is 73 mm. Combined with a width of 45 mm and height of 60 mm, it fits the standard SIRIUS S00 footprint on a DIN rail."},{"question":"Will 3RH1131-2BW40 drop into a panel specified around 3RT1015-1BB42 without rewiring?","answer":"Both are S00 frame size with the same 45 mm width and screw/snap-on mounting, so the mechanical fit is identical. The 3RH1131-2BW40 is a pure auxiliary contactor (3 NO, no power contacts), whereas 3RT1015-1BB42 is a power contactor with integrated auxiliary. If your panel uses the 3RT1015 as a main contactor and you need additional auxiliary contacts for signaling or interlocking, the 3RH1131-2BW40 mounts alongside it on the same DIN rail without rewiring the power circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-2BW40","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/3RH1131-2BW40 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}}