{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-2AU00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-2AU00","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-2AU00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2AU00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3RH1122-2AU00, 2 NO contacts, 10 A at 24 V, screw and snap-on mounting, IP20 front.","salesMarkdown":"The Siemens 3RH1122-2AU00 is a SIRIUS auxiliary contactor, size S00, with 2 normally-open instantaneous contacts and no delayed or make-before-break switching. The 10 A at 24 V rating governs the contactor's switching capacity in low-voltage control circuits — typical for PLC outputs, relay coils, or signal lamps. The 6 kV surge voltage resistance means the contacts can withstand transient overvoltages common in industrial panels without welding or arcing across. The IP20 front protects against finger contact but not moisture; this part is intended for dry, enclosed cabinet use, not washdown zones. The 2 NO instantaneous contacts switch within the same cycle as the coil — no intentional delay. That makes the 3RH1122-2AU00 a straight signal repeater or interlock element, not a timer or sequencing block. Size S00 (45 mm wide, 60 mm tall, 73 mm deep) fits the standard Siemens S00 contactor footprint. Screw and snap-on mounting lets you clip it onto a DIN rail or fasten it with screws to a backplate. Solid connections accept 2x conductors from 0.25 to 2.5 mm² — enough for daisy-chaining control wiring without extra terminals.","metaTitle":"Siemens 3RH1122-2AU00 SIRIUS Auxiliary Contactor, S00, 10A a","metaDescription":"Siemens 3RH1122-2AU00 SIRIUS auxiliary contactor, size S00, 2 NO contacts, 10 A at 24 V, IP20 front, screw and snap-on mounting. Current lifecycle stage. Sourced to order against R","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","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","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","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 50 Hz rated value":"240 V","at 500 V rated value":"2 A","at 60 Hz rated value":"240 V","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","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 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 %","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","apparent holding power of magnet coil at AC":"4.6 VA","apparent pick-up power of magnet coil at AC":"27 VA","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":"AC","Inductive Power Factor With Closing Power Of The Coil":"0.8","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","Inductive Power Factor With The Holding Power Of The Coil":"0.27","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"Cage Clamp 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=335801&mlfb=3RH1122-2AU00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2AU00/alternatives.json"},"ai":{"faq":[{"question":"Will 3RH1122-2AU00 drop into a panel that was specified around 3RH2122-2AV00 without rewiring?","answer":"Both are SIRIUS S00 auxiliary contactors with the same mounting footprint (45 mm wide, snap-on or screw). The 3RH1122-2AU00 carries 2 NO contacts; the 3RH2122-2AV00 carries 2 NO + 2 NC. If your circuit needs only the NO pair, the 3RH1122-2AU00 is a direct mechanical swap — same rail clip, same terminal spacing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-2AU00","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/3RH1122-2AU00 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}}