{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2122-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2122-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RH2122-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3RH2122-1AH00, 2 NO instantaneous contacts, 10 A at 24 V rated value, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens 3RH2122-1AH00 is a SIRIUS auxiliary contactor in size S00, carrying 2 normally-open instantaneous contacts rated 10 A at 24 V. Rated operational current drops with voltage: 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, and 0.26 A at 600 V. The arcing time sits between 10 and 15 ms, with an AC switching frequency up to 15 ms and a DC mechanical endurance of 10,000 operations per hour. Mechanical life is typical 30 million operations. Dimensions are 57.5 mm high, 45 mm wide, and 73 mm deep — the 45 mm width is a single 9 mm module equivalent, so it occupies one position on a DIN-rail terminal block assembly.","metaTitle":"Siemens 3RH2122-1AH00 SIRIUS Auxiliary Contactor, 2 NO, 24 V","metaDescription":"Siemens 3RH2122-1AH00 SIRIUS auxiliary contactor, size S00, 2 NO contacts rated 10 A at 24 V. Screw and snap-on 35 mm DIN rail mounting. Current lifecycle stage. Sourced to order a","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","Height":"57.5 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","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","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 230 V rated value":"10 A","at 400 V rated value":"3 A","at 440 V rated value":"0.5 A","at 50 Hz rated value":"48 V","at 500 V rated value":"2 A","at 60 Hz rated value":"48 V","at 600 V rated value":"0.26 A","at 690 V rated value":"1 A","Instantaneous Contact":"2","Relative Humidity Minimum":"10 %","Substance Prohibitance (Date)":"10/01/2009","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","operating frequency at DC-12 maximum":"1 000 1/h","operating frequency at DC-13 maximum":"1 000 1/h","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)","with low demand rate according to SN 31920":"40 %","apparent holding power of magnet coil at AC":"5.7 VA","apparent pick-up power of magnet coil at AC":"37 VA","with high demand rate according to SN 31920":"73 %","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","contact rating of auxiliary contacts according to UL":"A600 / Q600","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","Inductive Power Factor With The Holding Power Of The Coil":"0.25","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","design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V":"C characteristic: 6 A; 0.4 kA"}},"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=11257&mlfb=3RH2122-1AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1AH00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RH2122-1AH00?","answer":"It has 2 NO instantaneous contacts rated 10 A at 24 V, with a mechanical life of 30 million operations and a DC switching frequency of 10,000 operations per hour."},{"question":"Will 3RH2122-1AH00 drop into a panel specified for 3RH2122-2AF00?","answer":"Both are SIRIUS S00 auxiliary contactors with the same 45 mm width and 35 mm DIN rail mounting, so mechanical fit is identical. The difference is contact configuration: 3RH2122-1AH00 has 2 NO contacts, while 3RH2122-2AF00 has 2 NO + 2 NC. If the circuit requires only 2 NO, the 1AH00 is a drop-in replacement without rewiring."},{"question":"How do I get current pricing and availability for 3RH2122-1AH00?","answer":"Submit an RFQ through the storefront. Availability and current pricing are confirmed at quote time through our independent distribution network — we source this active SIRIUS line across multiple channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2122-1AH00","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/3RH2122-1AH00 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}}