{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BN40-0AA6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BN40-0AA6","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BN40-0AA6","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BN40-0AA6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1122-1BN40-0AA6, size S00, 45 mm wide, 2 NO + 2 NC contacts, rated 10 A at 24 V, screw and snap-on mounting, IP20 front.","salesMarkdown":"It carries 2 NO and 2 NC instantaneous contacts, rated for 10 A at 24 V and derated to 1 A at 690 V, so it handles both low-level PLC signals and moderate pilot-duty loads. The 45 mm width and size S00 frame let it snap onto a DIN rail alongside a matching contactor without eating extra panel space. The 24 V rated current of 10 A is the headline figure — it tells you the contact set can switch a 24 VDC control load like a small solenoid valve or a PLC input module without derating. If you're switching a 24 VDC proximity sensor or a relay coil, the contacts won't gum up from low energy. The mechanical life of 30 million operations means the armature and spring set will outlast most panel revisions. Terminals accept solid conductors from 0.5 mm² up to 4 mm² (two wires per clamp for smaller sizes), and AWG equivalents from 20 to 12. That covers standard control wiring — 1.5 mm² for most 24 V circuits, 2.5 mm² for longer runs. The depth of 72 mm leaves room behind the DIN rail for cable ducts.","metaTitle":"Siemens 3RH1122-1BN40-0AA6 SIRIUS Auxiliary Contactor, 45 mm","metaDescription":"Siemens SIRIUS 3RH1122-1BN40-0AA6 auxiliary contactor, size S00, 45 mm wide, 10 A at 24 V, 2 NO + 2 NC contacts, screw/snap-on mounting, IP20 front, active production.","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","Rated Value":"250 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":"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":"2","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","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"DC","Identification Number And Letter For Switching Elements":"22 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":"10 000 000","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=25713&mlfb=3RH1122-1BN40-0AA6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BN40-0AA6/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this auxiliary contactor?","answer":"It has 2 NO + 2 NC instantaneous contacts rated 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V. Mechanical life is 30 million operations, and contact reliability is 1 failure per 100 million operations at 17 V, 1 mA. Surge voltage resistance is 6 kV."},{"question":"What mounting options does it support?","answer":"Screw and snap-on mounting on a 35 mm DIN rail. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward and backward. Front protection is IP20."},{"question":"What wire sizes does it accept?","answer":"Solid conductors from 0.5 mm² to 4 mm² (two wires per clamp for 0.5–2.5 mm²), and AWG 20 to 12. The depth is 72 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BN40-0AA6","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/3RH1122-1BN40-0AA6 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}}