{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1TB00-0KV0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1TB00-0KV0","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1TB00-0KV0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1TB00-0KV0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, Size S00, 45 mm wide, 2 NO + 2 NC, screw and snap-on mounting, IP20 front, with varistor.","salesMarkdown":"The Siemens SIRIUS 3RH1122-1TB00-0KV0 is an auxiliary contactor — Size S00 frame, 45 mm wide, 57.5 mm tall, 72 mm deep. It's the signal-switching half of a contactor pair: 2 normally-open and 2 normally-closed instantaneous contacts, with a varistor built in for surge suppression across the coil. Rated for 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V — those are the thermal current ratings for the auxiliary contacts, so it handles control-circuit loads across common voltage levels without derating surprises. RoHS compliance date is 07/01/2006, so it meets the EU directive. No UL or CSA mark is listed in the spec record, but the SIRIUS family typically carries IEC/EN certifications for global panel builds — verify the specific approval for your jurisdiction against the datasheet. ## Wire terminations Terminal capacity accepts solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm². That's enough for daisy-chaining auxiliary circuits without piggyback terminals. Strip length and ferrule sizing follow standard practice for spring-cage or screw terminals — no special tooling needed.","metaTitle":"Siemens 3RH1122-1TB00-0KV0 SIRIUS Auxiliary Contactor, 45mm,","metaDescription":"Siemens SIRIUS auxiliary contactor 3RH1122-1TB00-0KV0. Size S00, 45mm wide, IP20 front, screw/snap-on mount. 2 NO + 2 NC contacts, varistor surge suppression. Active production.","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":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 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","Design Of The Surge Suppressor":"with varistor","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 (20 ... 16), 2x (18 ... 14), 1x 12","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)","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=217048&mlfb=3RH1122-1TB00-0KV0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1TB00-0KV0/alternatives.json"},"ai":{"faq":[{"question":"What are the key contact ratings?","answer":"The contacts are rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. It has 2 normally-open and 2 normally-closed instantaneous contacts with a varistor for coil surge suppression."},{"question":"Will this fit a panel designed for a 3RT1015-1AG61 contactor?","answer":"This is an auxiliary contactor (Size S00, 45 mm wide), not a power contactor. A 3RT1015-1AG61 is a main contactor — physically larger frame. They share the SIRIUS family and the same DIN-rail mounting method, but the footprint and terminal layout differ. You'd need to check the panel's wiring diagram and available DIN space; they are not drop-in interchangeable without rewiring the control circuit."},{"question":"What compliance documentation is available?","answer":"RoHS compliance is confirmed with a substance prohibition date of 07/01/2006. The SIRIUS series typically carries IEC/EN certifications for industrial control equipment. Specific UL or CSA marks are not listed in the spec record for this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1TB00-0KV0","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/3RH1122-1TB00-0KV0 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}}