{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-2AM20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-2AM20","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-2AM20","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2AM20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 2 NO + 2 NC instantaneous contacts, 10 A at 24 V, screw and snap-on mounting, 45 mm width, IP20 front.","salesMarkdown":"The Siemens 3RH1122-2AM20 is a SIRIUS auxiliary contactor in size S00, providing 2 normally open and 2 normally closed instantaneous contacts for control-circuit switching up to 10 A at 24 V. The IP20 front protection means it is suited for enclosure interiors where no washdown or dust ingress is expected. ## Ratings and switching capacity The contactor is rated for a rated operational current of 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V, covering control voltages across common global supply levels. The 50 Hz rated value is 0.8... 1.1 and the 60 Hz rated value is 0.85... 1.1 — these are the permissible voltage ranges (as a factor of rated voltage) for coil operation, ensuring the contactor picks up and holds across typical line variations. ## Mounting and environmental Shock resistance of 10g / 5 ms and 5g / 10 ms covers most machine vibration profiles. The conductor cross-section accepts 2x (0.25... 2.5 mm²) solid or stranded — spring-cage or screw terminals (depends on variant; this order code is screw-type).","metaTitle":"Siemens 3RH1122-2AM20 SIRIUS Auxiliary Contactor, 2 NO+2 NC,","metaDescription":"Siemens SIRIUS 3RH1122-2AM20 auxiliary contactor, size S00, 2 NO + 2 NC, 10 A at 24 V, 73 mm depth, IP20 front, screw & snap-on mount. Current production. Quoted to order.","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":"208 V","at 500 V rated value":"2 A","at 60 Hz rated value":"208 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=398193&mlfb=3RH1122-2AM20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2AM20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1122-2AM20?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3RH1122-2AM20?","answer":"73 mm, with a width of 45 mm and height of 60 mm, fitting the S00 contactor footprint."},{"question":"What wire size does 3RH1122-2AM20 accept?","answer":"Solid conductors: 2x (0.25... 2.5 mm²)."},{"question":"Will 3RH1122-2AM20 drop into a panel built for 3RH2122-2AF00?","answer":"Both are SIRIUS size S00 auxiliary contactors with the same 45 mm width and screw/snap-on mounting, so the mechanical footprint is identical. The 3RH1122-2AM20 has 2 NO + 2 NC instantaneous contacts; the 3RH2122-2AF00 has a different contact configuration. Check your control circuit voltage and contact arrangement before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-2AM20","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/3RH1122-2AM20 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}}