{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1AL00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1AL00","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1AL00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AL00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1122-1AL00 auxiliary contactor, size S00, 2 NO + 2 NC contacts, screw and snap-on mounting, IP20 front.","salesMarkdown":"It carries 2 normally-open and 2 normally-closed instantaneous contacts, configurable for interlocking, status feedback, or logic-level signal routing inside a panel. The size S00 footprint (45 mm wide, 57.5 mm high, 72 mm deep) slots into the same DIN-rail real estate as the matching S00 contactors and overload relays. Each contact is rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are the thermal (resistive) current ratings that govern continuous carry. For inductive DC loads the numbers drop sharply: 1 A at 110 V, 0.27 A at 220 V. That 0.27 A at 220 VDC is the figure to watch if you're switching DC solenoids or brake coils; the AC ratings don't apply there. Surge voltage withstand is 6 kV, which covers the impulse voltage expected in 400 V industrial environments (overvoltage category III). ## Wiring and mechanical endurance That covers most control-circuit wiring from signal-level pairs to 4 mm² power feeds for the contactor coil itself. Shock resistance is 10g at 5 ms and 5g at 10 ms, so it holds up on vibrating conveyor frames or packaging machinery. Environmental compliance includes RoHS substance prohibition dated July 1, 2006, which covers the original EU RoHS directive. The pollution degree rating of 3 means it's designed for industrial environments with conductive or dry non-conductive pollution — standard for control panels not in clean rooms.","metaTitle":"Siemens 3RH1122-1AL00 SIRIUS Auxiliary Contactor, 2 NO + 2 N","metaDescription":"Siemens SIRIUS 3RH1122-1AL00 auxiliary contactor, size S00, 2 NO + 2 NC contacts, rated 10 A at 24 V. Screw and snap-on mounting, IP20 front. Current production. 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","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","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","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":"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"}},"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=399802&mlfb=3RH1122-1AL00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AL00/alternatives.json"},"ai":{"faq":[{"question":"What is the contact configuration of 3RH1122-1AL00?","answer":"It has 2 normally-open and 2 normally-closed instantaneous contacts. There are no leading, lagging, delayed, or make-before-break contacts on this variant."},{"question":"What wire sizes does the 3RH1122-1AL00 accept?","answer":"The terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm². This covers most control-circuit wiring from signal pairs up to 4 mm² power feeds."},{"question":"What is the operating temperature range for this auxiliary contactor?","answer":"During operation it is rated from -25 °C to +60 °C. Storage and transport range is -55 °C to +80 °C."},{"question":"Can the 3RH1122-1AL00 be mounted in any orientation?","answer":"Yes, it allows ±180° rotation on a vertical mounting surface and can be tilted forward or backward by ±22.5° on a vertical surface. This gives flexibility for tight panel layouts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1AL00","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/3RH1122-1AL00 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}}