{"product_id":"3rh1131-1bf40-siemens-sirius-s00-auxiliary-contactor-relay-3no1nc-110-v-dc","title":"3RH1131-1BF40 | Siemens SIRIUS S00 Auxiliary Contactor Relay, 3NO+1NC, 110 V DC","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Siemens 3RH1131-1BF40 is a compact SIRIUS S00 auxiliary contactor relay designed for control-circuit switching tasks in industrial automation systems. Operating on a 110 V DC coil, it provides three normally-open and one normally-closed contact for reliable signaling and interlocking applications.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 685.783px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003ePanel Accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e3RH1131-1BF40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eRelay\/Socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eAuxiliary Contactor Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eSIRIUS 3RH1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eS00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eCoil Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e110 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eControl Voltage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Range Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e0.8…1.1 of rated coil voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eClosing Power (DC Coil)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e3.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eHolding Power (DC Coil)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e3.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eContact Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e3NO + 1NC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eSwitching Element Identifier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e31E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eMechanical Service Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eUp to 30,000,000 cycles (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eElectrical Ratings AC-12\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e10 A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 39.1875px;\"\u003e\u003cstrong\u003eElectrical Ratings AC-15\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 39.1875px;\"\u003e230 V: 6 A; 400 V: 3 A; 500 V: 2 A; 690 V: 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eElectrical Ratings DC-12\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e24 V: 10 A; 110 V: 3 A; 220 V: 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eElectrical Ratings DC-13\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e24 V: 10 A; 110 V: 1 A; 220 V: 0.27 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eShort Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003egL\/gG 10 A fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eShock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e10 g (5 ms), 5 g (10 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eProtection Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eIP20 (front)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 39.1875px;\"\u003e\u003cstrong\u003eAmbient Operating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 39.1875px;\"\u003e–25 °C to +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e–55 °C to +80 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eInstallation Altitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eUp to 2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eDIN rail or screw mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eTerminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eScrew-type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eConductor Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eUp to 2 × 2.5 mm² (fine-stranded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eDimensions (H×W×D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e57.5 mm × 45 mm × 72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eStatus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 41.2008%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4865%; height: 19.5938px;\"\u003e0.20 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan\u003e3RH1131-1BF40\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 3RH1131-1BF40 is part of Siemens’ SIRIUS 3RH1 auxiliary contactor series, engineered for long mechanical endurance and precise switching performance. It features screw-type terminals, IP20 front protection, and compatibility with S00 contactor accessories. Its 110 V DC coil offers stable operation within the allowable voltage range and meets IEC 81346-2 classification standards. As a phased-out model, it is commonly used as a service replacement for legacy control panels, with the preferred modern successor being the Siemens 3RH2131-1BF40.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAuxiliary Contactor Relay: Designed for signaling, interlocking, and auxiliary switching functions in automation systems.\u003c\/li\u003e\n\u003cli\u003e3NO + 1NC Contacts: Provides versatile contact combinations for control logic applications.\u003c\/li\u003e\n\u003cli\u003e110 V DC Coil: Stable DC operation with defined opening and holding power for precise response.\u003c\/li\u003e\n\u003cli\u003eCompact S00 Size: Fits into small control cabinets and supports Siemens S00 mounting accessories.\u003c\/li\u003e\n\u003cli\u003eHigh Mechanical Durability: Typical service life up to 30 million switching cycles depending on configuration.\u003c\/li\u003e\n\u003cli\u003eIP20 Front Protection: Ensures safe operator access and basic protection inside control panels.\u003c\/li\u003e\n\u003cli\u003eShock Resistant: Rated 10 g\/5 ms and 5 g\/10 ms for industrial vibration and shock conditions.\u003c\/li\u003e\n\u003cli\u003eWide Ambient Temperature Range: Operates from –25 °C to +60 °C with extended storage limits.\u003c\/li\u003e\n\u003cli\u003eDIN-Rail \u0026amp; Screw Mounting: Offers flexible installation using snap-on capability and screw fasteners.\u003c\/li\u003e\n\u003cli\u003eScrew-Type Terminals: Accepts a wide range of solid and stranded conductors for secure wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 3RH1131-1BF40 delivers the reliability and precision required for auxiliary switching in industrial control and automation environments.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49105077371136,"sku":"3RH1131-1BF40","price":219.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l960_a0924ad1-1840-42bb-bc35-bb9afc4e0dca.webp?v=1785539566","url":"https:\/\/alotechparts.com\/products\/3rh1131-1bf40-siemens-sirius-s00-auxiliary-contactor-relay-3no1nc-110-v-dc","provider":"Alo Tech Solutions","version":"1.0","type":"link"}