{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-1MB40-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-1MB40-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-1MB40-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1MB40-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling relay, 3RH1131-1MB40-0KT0, 24 VDC coil, 10 A AC-12 rated, S00 size, 45 mm wide, screw and snap-on mounting.","salesMarkdown":"The Siemens SIRIUS 3RH1131-1MB40-0KT0 is a coupling relay for switching auxiliary circuits — essentially a contactor-style relay that handles control signals, not motor loads. The S00 frame size keeps the footprint tight at 45 mm wide. Mounts via screw or snap-on to DIN rail — the snap-on feature speeds panel assembly. ## Coil and contact performance Pick-up voltage is 85% of rated (20.4 V for the 24 V coil), drop-out is 15% (3.6 V) — standard for industrial relays. Coil holding power is 1.4 W DC, so it won't heat up the panel noticeably.","metaTitle":"Siemens SIRIUS 3RH1131-1MB40-0KT0 Coupling Relay, 24 VDC, 10","metaDescription":"Siemens SIRIUS coupling relay 3RH1131-1MB40-0KT0, 24 VDC coil, 10 A AC-12 rated, S00 size, 45 mm wide. Current production. Sourced to order against RFQ.","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":"24 V","On The Front":"IP20","Initial Value":"0.85","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"No","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Full-scale value":"2.15","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":"Coupling relay for switching auxiliary circuits","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":"1.4 W","Holding power of magnet coil at DC":"1.4 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":"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","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=106809&mlfb=3RH1131-1MB40-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1MB40-0KT0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1131-1MB40-0KT0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3RH1131-1MB40-0KT0?","answer":"The coil is 24 V DC, the contacts are rated 10 A at AC-12 (resistive), and the surge voltage resistance is 6 kV. The S00 frame size is 45 mm wide."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-1MB40-0KT0","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/3RH1131-1MB40-0KT0 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}}