{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1431-1BE40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1431-1BE40","canonicalUrl":"https://aoctrl.com/siemens/3RH1431-1BE40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1431-1BE40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3 NO instantaneous contacts, 60 V DC coil, 10 A rated operational current, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"The Siemens 3RH1431-1BE40 is a SIRIUS auxiliary contactor in size S00, carrying three normally open instantaneous contacts and a 60 V DC coil. It is rated for 10 A at 24 V and 10 A in AC-12 duty, with a contact reliability of one incorrect switching operation per 100 million operations at 17 V, 1 mA. Mounts via screw or snap-on onto a DIN rail; the size S00 footprint is 90 mm wide by 57.5 mm high by 72 mm deep. Front protection is IP20 — suitable for enclosed panels but not for washdown areas. ## Duty and environmental ratings Shock resistance is 10g for 5 ms and 5g for 10 ms. Surge voltage withstand is 6 kV. The typical mechanical life is 5 million operations. ## Current ratings across voltages The contact ratings vary by voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V, and 1 A at 110 V, with 0.27 A at 220 V. These are the make/break capacities for the auxiliary contacts — derate accordingly when switching multiple loads or at elevated ambient temperatures.","metaTitle":"Siemens 3RH1431-1BE40 SIRIUS Auxiliary Contactor, 3 NO, 60 V","metaDescription":"Siemens SIRIUS 3RH1431-1BE40 auxiliary contactor, size S00, 3 NO contacts, 60 V DC coil, 10 A rated current, IP20, screw/snap-on mount. 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":"90 mm","Height":"57.5 mm","Rated Value":"60 V","Initial Value":"0.8","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","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","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":"5 000 000","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","Substance Prohibitance (Date)":"07/01/2006","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","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","with high demand rate according to SN 31920":"75 %","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","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Of The Contactor With Added Auxiliary Switch Block Typical":"5 000 000","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=34317&mlfb=3RH1431-1BE40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1431-1BE40/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RH1431-1BE40?","answer":"The depth is 72 mm, with a width of 90 mm and height of 57.5 mm."},{"question":"What wire sizes does 3RH1431-1BE40 accept?","answer":"It accepts solid conductors in these combinations: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm² per terminal."},{"question":"How does 3RH1431-1BE40 compare to 3RH2431-1AK60?","answer":"The 3RH2431-1AK60 is a physically larger contactor (size S2 vs S00) with a different coil voltage and contact configuration. It will not drop into a panel wired for the S00 footprint without mechanical modification. The 3RH1431-1BE40 is the correct size S00 part for a 60 V DC coil, 3 NO configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1431-1BE40","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/3RH1431-1BE40 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}}