{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1AK20-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1AK20-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1AK20-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AK20-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, Size S00, 2 NO + 2 NC, 10 A AC-12, screw and snap-on mounting, 45 x 57.5 x 72 mm.","salesMarkdown":"Its contact complement is 2 normally-open and 2 normally-closed instantaneous contacts, with no leading, delayed, or make-before-break options — a straightforward 2 NO / 2 NC block for standard interlocking and status feedback. The AC-12 rated operating current is 10 A at 24 V, which covers most 24 VDC control loads and pilot-duty circuits; at 230 V AC the rating drops to 6 A, and at 400 V AC to 3 A, so the actual switching capacity depends on the control voltage in your panel. The contactor mounts via both screw-fixing and snap-on onto a 35 mm DIN rail — the standard for European control panels — and occupies a 45 mm width footprint, with a 57.5 mm height and 72 mm depth that fits the S00 envelope common to SIRIUS auxiliary and power contactors. Snap-on mounting means it clicks directly onto the DIN rail alongside a SIRIUS power contactor (e.g. 3RT2 series) without extra hardware; the screw-fixing option is there if vibration or shock is a concern in the specific enclosure. The screw terminals accept solid conductors from 0.5 mm² up to 4 mm² per clamp — 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or 2x 4 mm² — so you can land two smaller control wires or one larger one per terminal, which is typical for daisy-chaining auxiliary circuits. Shock resistance is 10 g for 5 ms and 5 g for 10 ms per the spec, which covers most industrial vibration environments, including conveyor drives and pump stations, as long as the mounting is secure. Mechanical endurance is given as 30 million operating cycles typical — this is the mechanical life without load, so in a real control circuit switching 10 A at 24 VDC you'll get fewer cycles, but the contactor is built for high-duty signalling applications like machine cycle counters or safety chain interlocks.","metaTitle":"Siemens 3RH1122-1AK20-1AA0 SIRIUS Auxiliary Contactor, 10A A","metaDescription":"Siemens 3RH1122-1AK20-1AA0 SIRIUS auxiliary contactor, 2 NO + 2 NC contacts, 10A AC-12 rated, Size S00, screw/snap-on mount. Current production. Sourced to order against RFQ.","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","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","At The Side":"0 mm","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Shock resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting position":"standing, on horizontal mounting surface","Size of contactor":"S00","Product brand name":"SIRIUS","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":"120 V","at 500 V rated value":"2 A","at 60 Hz rated value":"120 V","at 690 V rated value":"1 A","Instantaneous Contact":"2","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Operating current at AC-12 maximum":"10 A","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 61346-2":"K","Reference code acc. to DIN EN 81346-2":"K","with low demand rate acc. to SN 31920":"40 %","With Degree Of Pollution 3 Rated Value":"690 V","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","Apparent holding power of magnet coil at AC":"4.6 V·A","Apparent pick-up power of magnet coil at AC":"27 V·A","Of Auxiliary Contacts Instantaneous Contact":"0","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","Inductive power factor with the holding power of the coil":"0.27","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$33.56","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=413604&mlfb=3RH1122-1AK20-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AK20-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3RH1122-1AK20-1AA0?","answer":"It is a Size S00 auxiliary contactor with 2 NO + 2 NC instantaneous contacts, rated 10 A at AC-12 (24 V), 6 A at 230 V AC, and 3 A at 400 V AC. It mounts on a 35 mm DIN rail via snap-on or screw fixing, occupies 45 mm width, and accepts conductors from 0.5 mm² to 4 mm² per terminal."},{"question":"Where can I buy 3RH1122-1AK20-1AA0 and get current pricing?","answer":"We source the 3RH1122-1AK20-1AA0 to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — stock positions are confirmed at quote time, not on a public listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1AK20-1AA0","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/3RH1122-1AK20-1AA0 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}}