{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1122-1AH00, size S00, 2 NO contacts, 10 A AC-12 rated, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"It carries 2 normally open (NO) instantaneous contacts rated 10 A at AC-12 (resistive load) and 10 A at 24 V, with a mechanical endurance of 30,000,000 operating cycles. Pollution degree 3 (industrial environment) and an IP20 rating on the front mean it's suited for enclosed control panels where condensation and conductive dust are managed. The 10 A AC-12 rating is the key figure for resistive control loads — pilot lights, relays, PLC inputs. For inductive loads like contactor coils, the switching capacity drops significantly: at 230 V AC-15 (typical for contactor coils) the rated current is 6 A, and at 400 V it's 3 A. The 24 V DC rating of 10 A is for resistive DC loads; at 110 V DC it drops to 1 A, and at 220 V DC to 0.27 A. These derated values are the ones that govern real-world coil switching, not the headline 10 A. The 2 NO contacts are instantaneous (no make-before-break or delayed switching), so this contactor provides straightforward on/off control without overlapping transitions. The auxiliary switch designation means it's intended to signal the state of a main contactor or perform logic-level switching in a control circuit. The S00 form factor matches the footprint of Siemens 3RT2 and 3RT1 contactor series for mechanical interlocking and common bus-bar systems. Screw terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² per clamp. The 0 mm side clearance allows side-by-side mounting without derating, saving rail space in dense panels. Shock resistance is rated at 10g for 5 ms and 5g for 10 ms, which covers most industrial vibration profiles from conveyors and pumps. The IP20 front protection means the terminals are touch-safe when installed in an IP54 or higher enclosure.","metaTitle":"Siemens 3RH1122-1AH00 SIRIUS Auxiliary Contactor, 10 A AC-12","metaDescription":"Siemens 3RH1122-1AH00 SIRIUS auxiliary contactor, size S00, 2 NO contacts, 10 A AC-12, screw/snap-on mount, IP20 front. Active lifecycle, sourced to order.","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":"+/-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","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":"48 V","at 500 V rated value":"2 A","at 60 Hz rated value":"48 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 81346-2":"K","with low demand rate acc. to SN 31920":"40 %","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","with degree of pollution 3 at AC rated value":"690 V","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":"$43.21","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=171933&mlfb=3RH1122-1AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AH00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings I need to check for fit?","answer":"The headline rating is 10 A at AC-12 (resistive) and 10 A at 24 V DC. For inductive AC loads like contactor coils, use the AC-15 derated values: 6 A at 230 V, 3 A at 400 V. For DC inductive loads: 1 A at 110 V, 0.27 A at 220 V. The mechanical endurance is 30,000,000 cycles."},{"question":"What wire sizes does it accept?","answer":"The screw terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² per clamp."},{"question":"Does it drop into a panel designed for a 3RT1015-1AG61 contactor?","answer":"The 3RH1122-1AH00 shares the same S00 footprint and DIN-rail mounting as the 3RT1015 series contactors, so it fits the same rail space and bus-bar system. However, the 3RT1015-1AG61 is a main contactor with a coil and power poles; the 3RH1122-1AH00 is an auxiliary contactor with only control contacts. They are not direct substitutes — the 3RH1122-1AH00 is used alongside a main contactor, not in place of one."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1AH00","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/3RH1122-1AH00 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}}