{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-2AL00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-2AL00","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-2AL00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2AL00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 2 NO instantaneous contacts, rated 10 A at 24 V, screw and snap-on mounting, IP20 front, 73 mm depth.","salesMarkdown":"It carries two normally-open instantaneous contacts, each rated 10 A at 24 V, with a contact reliability of one incorrect switching operation per 100 million operations at 17 V, 1 mA — suitable for low-energy PLC or safety relay inputs. Front protection is IP20, meaning the terminals are finger-safe inside the enclosure. The 10 A rating at 24 V is the thermal current (Ith) for the auxiliary contacts — that is the continuous carry current in a resistive circuit. For inductive loads like contactor coils or small solenoids, the switching capacity drops: at 110 V it is rated 1 A, at 230 V it is 6 A, and at 690 V it is 1 A. These are the AC-15 / DC-13 values that govern real-world switching life, not just the thermal rating. It occupies one DIN-rail module space and shares the same mounting hole pattern as the 3RT1 series contactors, so it can be ganged directly alongside them without extra bracketry. The SIRIUS series is widely stocked across the supply chain, so lead times are typically standard factory-to-distributor cycles. The substance prohibitance date of 07/01/2006 aligns with RoHS compliance — the part is RoHS-compliant as manufactured after that date. The product extension for auxiliary switches is marked 'Yes', meaning it accepts add-on contact blocks. The shock resistance is rated at 10g / 5 ms and 5g / 10 ms, covering typical vibration in conveyor and pump applications.","metaTitle":"Siemens 3RH1122-2AL00 SIRIUS Auxiliary Contactor, Size S00,","metaDescription":"Siemens 3RH1122-2AL00 SIRIUS auxiliary contactor, size S00, 2 NO contacts, rated 10 A at 24 V. Active production, screw and snap-on mounting, IP20 front. Sourced 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":"125 V","at 500 V rated value":"2 A","at 60 Hz rated value":"125 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=120136&mlfb=3RH1122-2AL00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2AL00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this auxiliary contactor?","answer":"It has 2 NO instantaneous contacts rated 10 A at 24 V thermal current. For inductive switching, the capacity is 1 A at 110 V, 6 A at 230 V, and 1 A at 690 V. The contact reliability is one failure per 100 million operations at 17 V, 1 mA."},{"question":"Will the 3RH1122-2AL00 fit alongside a 3RT1 series contactor in the same panel?","answer":"Yes, it shares the S00 frame size (45 mm wide, 60 mm tall, 73 mm deep) and the same DIN-rail mounting pattern as the 3RT1 power contactors. It can be ganged directly alongside them without extra brackets."},{"question":"What compliance documentation is available for this part?","answer":"The part is RoHS-compliant (substance prohibitance date 07/01/2006), rated for pollution degree 3, and has a surge voltage resistance of 6 kV. It carries IP20 front protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-2AL00","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/3RH1122-2AL00 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}}